20
num. 二十; twenty
🗣️ 情景例句
What are your weaknesses?
你的缺点是什么？
Men know where they were born, not where they shall die.
人能知其生于何地，不能知其死于何方。
This is done by a great number of ring-shaped air jets on the bottom of the craft.
船底装上大量环状喷气嘴以实现这一目的。