Language level

水平的英文： language level参考例句： While I was intent on improving my language,I met with an English grammar. 正当我致力于提高语言水平高度的；笔直的；平静的 v. 推平；毁坏；使平等；瞄准；变平；坦率诚实地对待 Level off the shelves with a spirit level.