大家在查： hematocrit Mira 增白 GerhardMulder coarse language understandingly 教育厅裔美国人艾立克 puffer

二十到四十

二十到四十

二十到四十

二十到四十

1

It is suggested that you do aerobic exercise for twenty to forty minutes , three to four times a week .

建议你每周做三到四次有氧运动，每次二十到四十分钟。

2

Normally , some 20 to 40 per cent of a satellite reaches the Earth 's surface when it falls out of orbit.

通常脱轨的卫星抵达地球表面时，只剩下大约百分之二十到四十左右。

3

Did you know that a leaking toilet can waste twenty to forty litres of water an hour ?

你知道一个漏水马桶一小时浪费二十到四十公升水吗？

热词推荐

大家在看

man , . you 's " after cum ? : - Facebook japan what Yeah then your 4th as of