n.毛邊書

名詞bolt的復數(shù)形式.

He can drive a car but he doesn't know anything about the nuts and bolts of the engine. 他會開汽車，但他對汽車發(fā)動機的結構一竅不通。

Bolts are making in this shop. 這個車間正在制造螺釘。

These nuts and bolts hold the wheels on. 這些螺帽和螺栓把輪子固定住了。

The gate bolts on the inside. 這大門是從里面閂上的。