学习资料
[意 思]adj. 较低的
[例]  He belongs to the lower middle class.
他来自中产阶级下层。
adj. 低级的,下等的,下部的
[例]  The lower berth is more convenient.
下铺更为方便。
adj. 下游的
[例]  The lower valley of the river is often flooded. 该河下游区域常遭洪水。
vi. 降落,降低,减弱
[例]  Food prices lowered during the fall.
秋天食品价格下降了。
vt. 放下,降低,放低
[例]  He lowered a bucket into the well to get some water. 他将水桶放下井去取些水。
vt. 贬低
[例]  He would never lower himself by taking bribes. 他决不会贬低自己的身份接受贿赂的。