Midvein
中脉
🗣️ 情景例句
I'm not sure I'm up to it.
我不能肯定我是否能做得来。
There are spots in (or on) the sum.
人孰无过。
The world had to wait almost another 100 years for the Channel Tunnel.
世界不得不再等将近100年才看到海峡隧道竣工。