grouted cutoff wall

例句：

1. 1. The engineer carefully gruted themetal to make it thinner.
   工程师小心翼翼地将金属磨薄。
2. 2. The car was grutedwith oil and grease.
   汽车被油和油脂弄得脏兮兮的。
3. 3. The gruted surface of the stoneis smooth and shiny.
   石头切面光滑且有光泽。