Recon
n. 侦察, 交换子\\n[计] 追溯转换
🗣️ 情景例句
What do you think of the spaceship?
你觉得那个太空船怎么样？
When I slept, he was out.
当我睡了时候，他外出了。
All we have to do is sign the contract.
剩下的只要签订个契约就行了。