He's very good at arithmetic. 他很擅长做算术。
I'm not sure my arithmetic is correct, but I think the total is 75. 我拿不准我的演算是否正确,但我想总数为75。
According to the arithmetic, there could be six new cases each day. 根据人数统计每天可能有6个新病例。
an arithmetic problem 算术问题
noun
👨🏻🏫 Mr. Ng 麥美倫詞典 📚 – macmillan.mister5️⃣.net切換為繁體中文