mathematics
n[sing or pl v]
(also Brit infml 英式口语作 maths [sing or pl v]; US math [sing v]) science of numbers, quantity and space, of which eg arithmetic, algebra, trigonometry and geometry are branches 数学
His mathematics are weak, ie He is not very good at doing calculations, etc. 他数学不好.
Maths is her strongest subject. 数学是她最强的科目.
I don't understand the mathematics (eg the complicated calculations) here. 我不明白这里复杂的数学运算.
When a student recently saw two workmen using a pneumatic drill outside his university, he immediately telephoned the police and informed them that two students dressed up as workmen were tearing up the road with a pneumatic drill.