造句：

1.The eyes are often retracted from dehydration .

眼睛常因脱水而凹陷。

2.It forms a major structural depression .

它构成一个大的构造凹陷。

3.This india, the primal, has been depressed .

原始的古印度却凹陷下去了。

4.Recessing the oxidizer tube improves stability .

氧化剂管的凹陷使稳定性增强。

5.His cheeks were sunken and his cheek-bones prominent .

他脸颊凹陷，颧骨突出。

6.Both were growing hollow-eyed .

双方都变得眼睛凹陷了。

7.The river hollows its bank .

河岸因流水而凹陷。

8.Her eyes were a little hollow, and reddish about the rims .

她的眼睛微微凹陷，眼眶有些发红。

9.You will become sallow and hollow-cheeked, and dull-eyed .

你会变得面如土色、两颊凹陷、眼光迟滞。

10.Once the concavity was filled further growth could not take place .

一旦凹陷填满，就不可能继续生长。

基本解释：凹陷，多用于形容某一点比周围的支撑力小而造成周围高中间低的局面