Xlc
abbr. xenon lamp collimator 氙灯平行光管，氙灯准直仪
🗣️ 情景例句
The best way to promote your products is through advertising.
推广产品最好的方法就是买广告。
When are visiting hours over?
探病的时间到几点为止呢？
I went further back into the cave and stopped still.
我向前走拐进岩洞，停住不动。