掉出

• drop out

例句

1. 我用力把螺丝往木头上拧，可是拧不进去，又掉出来了。
   I've put the screw in the wood as tightly as I can, but it won't stay in, it keeps slipping out.
2. 论文从封袋里掉出来了，把它们放回原处。
   The papers are falling out of the envelop, push them back.
3. 火炉里掉出一块炽热的煤把地毯烧了。
   A hot coal fell out of the fire and burnt the carpet.