单词：buoyant force
buoyant force的用法和样例：
例句
- The raft will be more buoyant if it is less heavy.木筏若轻一点，浮力就更大了。
- A boat must be made of buoyant material.船一定要用有浮力的材料来做。
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bend,v 使弯曲＝crook 【例】The road bends here 路在这里转弯。 【类】bend:rigid＝submerge:buoyant＝dissolve:insoluble刚性的不会弯曲＝有浮力的不会沉没＝不能溶解的不会溶解
不择手段背单词
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