Concurrentness
n. concurrent的变形
🗣️ 情景例句
and make sure that it is in good condition
确定它状 良好
No. I have been away on vacation.
是呀，我休假去了。
The wall behind looks a bit grey and dull. What can we do to make it look less ugly?
后面那堵墙看起来有点暗。我们能不能让它漂亮点？