Nontrade
非贸易
🗣️ 情景例句
I would like to buy some stamps, please.
我想买些邮票。
I put some photographs in the envelope.
我在信里夹了几张照片。
If then we are so certain that other intelligent life exists in the universe,
既然我们如此坚信宇宙中存在着其他有智力的生命，