Optothermal
光热
🗣️ 情景例句
I want a package deal including airfare and hotel.
我需要一个成套服务，包括机票和住宿。
Beware beginnings.
慎始为上。
Now the other stuents open their eyes, and guess who has the eraser.
现在其余的学生张开眼，然后猜谁手里有橡皮擦。