twice的例句

twice 的相关例句:

51.	This feast of the god is kept twice a year.
	这个神的祭典一年举行两次。
52.	The new airplane flies at twice the speed of sound.
	这种新式飞机以两倍于音速的速度飞行。
53.	The tide ebbs and flows twice in twenty-four hours.
	潮水每24小时涨落两次。
54.	Officials from Greenwich Observatory have the clock checked twice a day.
	格林尼治天文台的官员们每天两次派人矫正此钟。
55.	Some of my acquaintances in the country come up to town once or twice a year to visit the theatre as a special treat.
	我在乡村有一些熟人，他们每年进城来看一回或几回戏，并把此看作一种特殊的享受。
56.	It is a world of red sandy deserts ( hence its name -- the Red Planet), cloudless skies, savage sandstorms, chasms wider than the Grand Canyon and at least one mountain more than twice as tall as Everest.
	这是一个红色沙漠的世界（因而得名：红色行星），无云的天空，凶猛的沙暴，比大峡谷还宽的裂缝，起码有一座山有珠穆朗玛峰的近两倍高。
57.	Once or twice , I recall, I experienced a moment of fear and it was fear bordering on panic.
	我回想起有一两次我感受到片刻的恐惧，这是几乎到了惊慌失措的程度的恐惧。
58.	A work ill done must be twice done.
	【谚】马虎干活，准得返工。
59.	Once bitten, twice shy.
	【谚】一次被咬，下次胆小。
60.	He has been there at least twice .
	他至少去过那儿两次。