once 的中文翻译

音标: [wʌns]

n.

adv.一次, 从前, 曾经

conj.

一旦

once 的英文句子和中文句子

The conditioned response, once it is firmly established, can be extinguished dozens of times, but it sill always return, like the proverbial bad penny.

条件反射一经形成，虽然可以一次又一次地压制下去，但是它总会重新再现，真是摆也摆不脱扔也扔不掉。


My sister goes to a beauty parlor once a week.

我妹妹每周去一次美容院。


The flue should draw better once it's been swept.

烟道一经清扫，通风情况应好些。


A medieval instrument, now replaced by the sextant, that was once used to determine the altitude of the sun or other celestial bodies.

星盘一种中世纪的仪器，曾用来测量太阳或其它天体的高度，现在已被六分仪取代


A large sheet of paper folded once in the middle, making two leaves or four pages of a book or manuscript.

对折纸在中间对折的一张大纸，制成书或手稿中的两张或四页


I once saw a man tear a telephone directory in half.

我有一次看见一个人把电话簿撕成了两半.


If you put too much coal on the fire at once you'll smother it.

在火上一下子添上很多煤, 反而能把火闷死.


Most of us would draw the line somewhere, like the man who said he'd try anything once except insect and folk dancing.

就像那个说他除了昆虫和民间舞蹈啥都想试试的人一样，我们大多数人心里都有个人界线，知道该在哪儿收手。


The dustman comes once a week to collect the rubbish.

垃圾工每周来收一次垃圾。


The Saxon once settled in England in early times.

撒克逊人早期曾定居英格兰。