sag
US /sæɡ/
UK /sæɡ/
动词
1.
下垂
to drop down to a lower level in the middle:
示例:
•
The shelf sagged under the weight of the heavy books.
名词
1.
下垂
a movement or position in which something has dropped down to a lower level:
示例:
•
a sag in the roof
在 Lingoland 学习这个单词