Hitab
噪声和背景信号的测定靶
🗣️ 情景例句
OK.
好的。
Since we need the goods urgently, we must insist on express shipment.
由于我方急需这批货物，我方坚持使用快递装运。
The tree must be put in the hole now.
现在把树放入坑里。