unstrapped

But he could not wait. He unstrapped the tin bucket and began to bale the pool.

可是他等不及了，便解下身上的白铁罐子，把坑里的水舀出去；

She was quite sure neither of the two men had gone around to the back of the car, but the bike was unstrapped and leaning against the gate.

她非常确定这两个人都没有绕到车后面来，自行车就被解下，靠在了大门边上。