🗣️ 情景例句
Never pump gas with the engine running.
发动机在运转时，别加油。
If you were to attend the banquet ,what would you wear?
如果你将出席宴会，你将穿什么？
A short while ago, my sister helped me to carry one of my old bookcases up the stairs.
几分钟前，我妹妹帮我把一个旧书橱抬上了楼。