Watchout
n. 留神观察, 留心守候, 监视
🗣️ 情景例句
This job is no picnic.
这份工作很累人。
You want me to shut him up, guy?
哥们，要不要我把它办掉？
it must be known to any kind of radio astronomer in the universe.
这个频率是宇宙中任何射电天文学家都应该熟悉的。