Mental arithmetic
n. 心算
📖 牛津释义
mental arithmetic
calculation(s) done in the mind, without writing down figures or using a calculator, etc 心算.
🧩 词语组成解析
mental
['mɛntl]
adj. 内心的，精神的，思想的，心理的;智慧的，智[脑]力的;〈口〉精神病的，意志薄弱的，愚笨的;
n. 精神病患者;
ment思考，神智+al表形容词 → 智力的；精神的
🗣️ 情景例句
Would it be all right if I went with you?
我跟你去可以吗？
I want to report a theft.
我要报一宗盗窃案。
The only regular visitors to the monastery in winter are parties of skiers who go there at Christmas and Easter.
冬天常来修道院参观的只有一批批滑雪者。他们在圣诞节或复活节到那儿去。