Deutoxylem
后生木质部
🗣️ 情景例句
Always full of surprises.
总是出人意表。
It is as well to know which way the wind blows.
识时务者为俊杰。
The comparable speed from the Moon is only 1.5 miles per second.
而从月球出发的相应速度只是每秒1。5英里。