U-v
[计]= UltraViolet,紫外线
🗣️ 情景例句
My computer was infected by a virus, I guess since I didn't have firewall installed.
我的电脑受到病毒感染了，我想是因为我没装防火墙。
Look before you leap.
慎思而后行。
She teaches foreign students Chinese.
她教外国学生汉语。