Leaned
lean的过去式和过去分词
🗣️ 情景例句
I don't have time to take any elective classes.
我没有时间去上任何选修课。
Did you watch the new office building being built?
你看过在建设中的新的办公楼吗？
Nobody has ever solved this problem.
没有人曾解决过这个问题。