diff --git a/src/compile/mod.rs b/src/compile/mod.rs
index 78bd5be..6aa61ff 100644
--- a/src/compile/mod.rs
+++ b/src/compile/mod.rs
@@ -332,20 +332,28 @@ fn compile_name_multi_statement(mut env: &mut Env, idents: &[parse::Identifier])
     res
 }
 
-fn compile_rvalue_noqi2(mut env: &mut Env, rv: &parse::RvalueNoQi2, paren_when_casted : bool) -> String {
+fn compile_rvalue_noqi2(
+    mut env: &mut Env,
+    rv: &parse::RvalueNoQi2,
+    paren_when_casted: bool,
+) -> String {
     match rv {
         parse::RvalueNoQi2::Simple(d) => {
             compile_dataorqi2(&mut env, &parse::DataOrQi2::Data(d.clone()))
         }
-        parse::RvalueNoQi2::Length(d) => if paren_when_casted {format!(
-            "({}.len() as f64)",
-            compile_dataorqi2(&mut env, &parse::DataOrQi2::Data(d.clone()))
-        )} else {
-            format!(
-                "{}.len() as f64",
-                compile_dataorqi2(&mut env, &parse::DataOrQi2::Data(d.clone()))
-            )
-        },
+        parse::RvalueNoQi2::Length(d) => {
+            if paren_when_casted {
+                format!(
+                    "({}.len() as f64)",
+                    compile_dataorqi2(&mut env, &parse::DataOrQi2::Data(d.clone()))
+                )
+            } else {
+                format!(
+                    "{}.len() as f64",
+                    compile_dataorqi2(&mut env, &parse::DataOrQi2::Data(d.clone()))
+                )
+            }
+        }
         parse::RvalueNoQi2::Index(d, ind) => format!(
             "{}[{} - 1]",
             compile_dataorqi2(&mut env, &parse::DataOrQi2::Data(d.clone())),
@@ -493,6 +501,14 @@ fn compile_statement(mut env: &mut Env, st: &parse::Statement) -> Vec<Line> {
             vec![]
         }
         parse::Statement::Math { math } => compile_math(&mut env, math),
+        parse::Statement::ReferenceWhatIsLeft { data } => vec![(
+            env.indent_level,
+            format!(
+                "let  _ans{} = &{}[1..].to_vec();",
+                get_new_unnamed_var(&mut env),
+                compile_dataorqi2(&mut env, &parse::DataOrQi2::Data(data.clone()))
+            ),
+        )],
         parse::Statement::Declare(parse::DeclareStatement {
             how_many_variables,
             type_,
diff --git a/src/identbimap/mod.rs b/src/identbimap/mod.rs
index a060e80..651094c 100644
--- a/src/identbimap/mod.rs
+++ b/src/identbimap/mod.rs
@@ -138,6 +138,9 @@ impl IdentBiMap {
     }
     fn insert_stmt(&mut self, st: &parse::Statement, conversion_table: &Table) {
         match st {
+            parse::Statement::ReferenceWhatIsLeft { data } => {
+                self.insert_dat(&data, &conversion_table);
+            }
             parse::Statement::ForArr { list, elem, stmts } => {
                 self.insert_ident(&list, &conversion_table);
                 self.insert_ident(&elem, &conversion_table);
diff --git a/src/parse/mod.rs b/src/parse/mod.rs
index cd1f539..8195f79 100644
--- a/src/parse/mod.rs
+++ b/src/parse/mod.rs
@@ -71,6 +71,9 @@ pub enum Statement {
     Reference {
         rvalue: RvalueNoQi2,
     },
+    ReferenceWhatIsLeft {
+        data: Data,
+    },
     ArrayFill {
         what_to_fill: IdentOrQi2,
         elems: Vec<Data>,
@@ -470,7 +473,7 @@ fn parse_reference_statement_after_fu2(mut iter: &mut LexIter<'_>) -> Result<Sta
                 lex::Lex::IntNum(index) => Ok(Statement::Reference {
                     rvalue: RvalueNoQi2::Index(data, interpret_intnum(&index)),
                 }),
-                lex::Lex::Qi2Yu2 => unimplemented!("夫 data 之 其餘"),
+                lex::Lex::Qi2Yu2 => Ok(Statement::ReferenceWhatIsLeft { data }),
                 lex::Lex::Identifier(ident) => Ok(Statement::Reference {
                     rvalue: RvalueNoQi2::IndexByIdent(data, Identifier(ident.clone())),
                 }),
diff --git a/src/tests/mod.rs b/src/tests/mod.rs
index 219d0b8..24eeae9 100644
--- a/src/tests/mod.rs
+++ b/src/tests/mod.rs
@@ -354,3 +354,7 @@ fn test078() {
 fn test079() {
     test("test079")
 }
+#[test]
+fn test080() {
+    test("test080")
+}
diff --git a/test080.rs b/test080.rs
new file mode 100644
index 0000000..d79ce03
--- /dev/null
+++ b/test080.rs
@@ -0,0 +1,7 @@
+fn main() {
+    let mut JIA3 = vec![];
+    JIA3.push(3.0);
+    JIA3.push(5.0);
+    let  _ans1 = &JIA3[1..].to_vec();
+    let YI3 = _ans1;
+}
diff --git a/test080.wy b/test080.wy
new file mode 100644
index 0000000..6df7479
--- /dev/null
+++ b/test080.wy
@@ -0,0 +1,4 @@
+吾有一列。名之曰「甲」。充「甲」以三。充「甲」以五。
+
+夫「甲」之其餘。名之曰「乙」。
+