Opting
v. 选择, 挑选( opt的现在分词 )
🗣️ 情景例句
That's fair enough.
这倒很公平。
How often did I tell you not to speak so loud?
我告诉你多少次不要讲话这么大声?
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。