Retroject
vt. 向后抛, 向后投射, 掷回, (喻)回想, 回溯
🗣️ 情景例句
How was your flight?
旅途愉快吗？
It's bleeding.You'd better go see a doctor about that cut.
它正在流血. 你最好为那个刀口去看医生。
easily obtainable from the lunar rocks in the form of liquid oxygen.
从月球上的岩石中很容易提炼出液态氧，