本产品重量轻、体积小、配备LED灯、携带方便、适宜于狭小空间作业。
All the above are of light weight, small volume, portable, and with LED light, which is very convenient for work in small room.
我正在做作业,突然所有的灯都熄灭了。
我刚做完作业,突然灯全灭了。
I had just finished my homework when all the lights went out.
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