Centroid
n. 质心\\n[机] 瞬心线
🗣️ 情景例句
I'll have to work for years to pay off my college loan.
我得工作好几年才能还清助学贷款。
I want a package deal including airfare and hotel.
我需要一个成套服务，包括机票和住宿
Growth, however, brings new problems and concerns.
不过，发展也带来了新的问题和顾虑。