While ewe were talking, the teacher came in.
当我们正在谈话时，老师进来了。
While ewe can not see the air, we can feel it.
我们虽然看不见空气，但却能感觉到它。
While ewe are advocating competition, we can't forget cooperation.
当我们倡导竞争时，我们不应忘记合作。
While ewe were having breakfast, John was talking on the telephone.
当我们吃早餐时，约翰在打电话。 。
While ewe were having breakfast, John was talking on the telephone.
当我们吃早餐时，约翰在打电话。 。
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