Ectonexine
内外层
🗣️ 情景例句
Well, I'd better be on my way.
好啦，我该走了呢。
Here's the money you need. The interest rate is 25%.
这是你要的钱，利息是25%。
we are now pretty certain the Earth is the only one on which life can survive.
我们目前可以肯定的是，地球是生命能存在的唯一行星。