1. The tops of trees form a kind of roof, under which there is little light, as the sun cannot get in, and it is very quiet because the trees keep out the wind.
    树冠形成一种顶篷，阳光几乎无法透入，所以林中光线很暗。又因为树木挡住了风，所以林中也很寂静。

2. They get angry that they have to carry it all, and they blow their tops.
    他们生气是因为他们不得不把什么事情都扛在肩上, 还为之发脾气。

3. She even dusted the tops of doors, using a top-of-the-door duster made of old stockings, stuffed with more old stockings.
    她甚至用一种"门顶揩布"来清洁门顶。这东西是用旧长筒袜里面再塞上旧长筒袜做成的。