hollowest

1.使成凹形,使成空洞,挖空 (out)

2.变空

1.山谷

2.凹地,穴,洞坑

1.空的,中空的

2.空虚的,不诚实的,虚伪的

3.(声音)瓮塞的,空洞的;沉重的

4.空腹的,饥饿的

1.〈口〉完全,彻底

1.a small area in the ground that is lower than the ground around it

2.an area on someone’s body that is slightly lower than the area around it

1.empty inside

2.hollow promises or threats are not sincere, or are about things that will not really happen; with no real meaning

3.a hollow sound is a low sound like something empty being hit

4.hollow eyes or cheeks seem to have sunk into your head, for example because you are tired, thin, or sick