Ectonexine
内外层
🗣️ 情景例句
OK, and go out and have a drink to congratulate ourselves.
对，再出去喝一杯以示庆祝。
Don't cross the bridge till you get to it.
不要杞人忧天。
Yes, you need to get some underwater plants.
是的，你还需要弄一些水下植物。