He had some swimming lessons, and now he is good at swimming.
他上了几次

,现在他很擅

了。

He had some swimming lessons, and now he is good at swimming.
他上了几次

,现在他很擅

了。
We have English lessons every other day.
我们每隔
天有英语
。
We had a history lesson at school this morning.
我们今天早上在学校上了
堂历史
。
The Argentine debacle has important lessons to teach.
阿根廷的崩溃提供了重要的教训。
This textbook has twenty lessons.
这
本有

。
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