Tetrahedra
n. 四面体 (tetrahedron的变形)
🗣️ 情景例句
I Wonder whether they will arrive on time.
我也不知道他能不能准时到。
This part of the country is very hilly.
这个国家这一部分有很多丘陵。
But this is not a business that can be undertaken in a day or swiftly improvised by a mere command of the will.
但这并非一日之功，也不是单凭意志一蹴而就的事。