Tetrahedrons
(tetrahedron 的复数) n. 四面体
🗣️ 情景例句
First, they have an excellent School of Journalism.
首先 ，那儿有个很优秀的新闻研究所。
Children enter primary school at the age of 7.
孩子们7岁进小学。
'You don't need bookcases at all.You can sit here in your spare time and read the carpet!'
“你根本用不着书橱，空闲时你可以坐在这儿读地毯！”