adj. 暗淡的；模糊的；笨的。
v. 使暗淡；使失去光泽。
n. 车头近光灯；停车灯。
语法：
dim的基本意思是通卜槐过减少照明等使事物的亮度和清晰度减弱,难以看清。
dim可用作不及物动词,意为“(灯光等)变暗淡”; 也可用作及物动词,意为“使(灯光等)变暗淡”或“使(眼睛)变模糊”。
dim接out可表示“变弱”,而dim up则指“逐渐增强”。
用作形容词 (adj.)
Most comets are so dim that they can not be seen by the naked eye.
彗星很暗淡,肉眼看不见。
He spoke with firmness, but his face was very sad and his eyes at times were dim.
他讲话时预期坚定，但面带愁容，时而眼神暗淡。
I made out two dim shapes in the gloom.
我在朦胧中看出有两个模糊的影子姿粗。
She is rather dim about the importance of keeping records.
她不明白作记录的重要性。
用作动词 (v.)
Old age hasn't dimmed her memory.
她虽然年事已高，但记忆并未模糊。
The light of a candle is dimmed by sunlight.
烛光在日光下显得很黯淡。
词汇搭配：
用作形容词 (adj.)
～+名词
dimrecollection 依稀记得
dim room 光线暗淡的房间
dim sound 模糊不清的声音
～+介词
eyes dim with tears 模糊的泪眼
用作动词 (v.)
～+副词
dim abruptly 突然地变暗
dim prematurely 过早地失去光泽
dim scarcely 光线减弱
dim down the lights 使型册友灯光暗下来
dim out a light 使灯光转暗
～+介词
dim by clouds 乌云使天色变暗
dim with steam 因有水汽而模糊
dim with tears 泪眼蒙眬
