Ectonexine
内外层
🗣️ 情景例句
Table tennis, I suppose. That's almost our national game. People from all walks play it.
我想应该是乒乓球吧。它几乎是全国性运动，各行各业的人都打。
One rotten apple spoils the whole barrel.
一只烂苹果烂一萝苹果。
The contents were disappointing.
箱内东西令人失望。