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- She rolled in for work twenty minutes late. 她懒懒散散地来上班，迟到了二十分钟。
- He sucked in air, then went under the water again. 他深深吸了一口气又潜到水里。
- Designed to operate on land, water, or in air. 长于陆海空作战的，三栖的可在陆上、水上或空中操作的
- How much does sound travel faster in water than in air? 声音在水中比在空气中传播快多少？
- As a result of the leak to the press, heads will roll in White hall. 由于消息泄露给了新闻界，白厅有一些人将丢饭碗。
- The thunder rolled in the distance. 远方雷声隆隆。
- The speed of sound in water is about four as great as in air. 声音在水中的速度是空气中的四倍左右
- Exhaust gas has been incriminated in air pollution in cities. 废气已过视为城市空气污染的原因。
- The steamer pitched and rolled in a rough sea . 这轮船在风暴大作的海中前后左右地颠簸。
- The comedian soon had them rolling in the aisles. 那滑稽演员很快就逗得他们捧腹大笑。
- She crawled onto the river bank and lay there gulping in air. 她爬上河岸,躺在那里喘着大气。
- When I was in trouble offers of help rolled in. 当我陷入困境时，大量的援助不断涌来。
- The travelling carriage rolled in sight. 旅行马车辘辘驶进了视野。
- A person is no happier because he rolls in wealth. 富有的人不一定比别人幸福。
- The steamer pitched and rolled in a rough sea. 这轮船在风暴大作的海中前后左右地颠簸。
- The fog rolled in from the water. 雾气滚滚涌出水面。
- What is the percentage of nitrogen in air? 空气中所含的氮的比例是多少?
- Tourists rolled in from all parts of the country. 全国各地的游客纷至沓来。
- He watched the bombs bursting in air. 他看见炸弹在空中爆炸。
- Steve rolled in around lunchtime. 到午饭时分，史蒂夫才慢吞吞地来了。
