您要查找的是不是：
- Father bought a new welcome mat for our new house. 爸爸为我们的新房子买了一个擦鞋垫。
- I wiped my shoes on the mat before I came in. 我在进门前把鞋在垫子上擦了擦。
- There are some clods of soil on the mat. 垫子上有些土块。
- Children are usually more buoyant than adults. 孩子往往比成年人快乐。
- Share prices were buoyant today in active trading. 今日股票交投活跃，价格看涨。
- Salt water is more buoyant than fresh water. 盐水比淡水浮力大。
- The force of his fall was broken by the straw mat. 草垫的缓冲作用减弱了他下跌的力量。
- Be careful you don't trip (up) on the mat. 小心别在地席上绊倒了。
- A coal fell from the fire and burned the mat. 一块煤炭从火中掉出来，烧坏了地席。
- Our welcome mat is always out to our friends. 对于朋友，我们总是热烈欢迎。
- Having a buoyant or self-confident air; brisk. 轻松活泼的满怀信心的或洋洋自得的; 活泼的
- He lifted the mat and slid the key under (it). 他掀起垫子把钥匙悄悄放在下面。
- The raft would be more buoyant if it was less heavy. 木筏若轻一点浮起的就更好了。
- buoyant mat 浮力沉垫
- The raft will be more buoyant if it is less heavy. 木筏若轻一点，浮力就更大了。
- A mat placed before a doorway for wiping the shoes. 门毯，门垫放在门口用于擦鞋底的垫子
- He wiped his dirty boots on the mat before entering the room. 他在进屋前把脏靴子在门垫子上擦了擦。
- Scrape your shoes on the door mat before you come in. 进屋前先在门口擦鞋垫上擦一擦鞋子。
- Clean your shoes on the mat, or you'll muck up the floor. 把鞋子在蹭鞋垫上擦干净，否则你会把地板弄脏的。
- The buoyant force up equals the weight down. 向上的浮力等于向下的重量。
