weight即可做可数名词，又可做不可数名词，weight在做“砝码,秤砣”时可数,还有在做“巨大重量之物,重压负担”的意思时可数。表示“重”“重量”“分量”，不可数。
weight即可做可数名词[C]又可做不可数名词[U]
名词 n.
1.重,重量;体重[C][U]
What is your weight?
你体重多少?
2.砝码[C]
3.重物;镇石;文镇[C]
4.重量单位；一磅重[U][C]
5.(精神的)压力;重担;负担[C][(+on/off)]
That's quite a weight off my mind.
那真叫我如释重负.
6.价值;重要性;势力;影响[U]
Our boss's opinions seem to carry very little weight at home.
我们老板的意见在家里似乎没有什么权威.
Matters of great weight are handled by the general manager himself.
重大问题由总经理亲自处理。
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