Lhs
产生式规则左部
🗣️ 情景例句
I have to return this book to the library.
我得把书还回图书馆了。
Never swap (or swop) horses while crossing the stream.
骑渡中流莫换马。（指危难时不宜做大变动）
And she encouraged me when I made up my mind to go to college.
我下决心上大学时，她则给我予鼓励。