单词详解

1. num. 三十，三十个（the number 30） 

He lived in Canada in the thirties. 三十年代他住在加拿大。

The garden is thirty feet wide. 这个花园三十英尺宽。

Six times five is thirty. 五乘六得三十。

Thirty passengers with reservations cannot be seated. 有三十个持有预约机票的旅客无法就座。

Thirty percent of the liquor is alcohol. 这酒含百分之三十的酒精。

Thirty percent of the farmland has been planted oil crops.

百分之三十的农田已种上油料作物。

2. 三十多，三十几（指 30 至 39 之间的数字） (When you talk about the thirties, you are referring to numbers between 30 and 39. For example, if you are in your thirties, you are aged  between 30 and 39. If the temperature is in the thirties, the temperature is between 30 and 39 degrees.)

Mozart clearly enjoyed good health throughout his twenties and early thirties.

显然，莫扎特在二十几岁到三十刚出头时，身体非常好

3. 三十年代（指 1930 年至 1939 年） (The thirties is the decade between 1930 and 1939.)

She became quite a notable director in the thirties and forties. 她在三四十年代成了一位名导演。

相关单词

in one’s thirties

He left China in his thirties. 他三十多岁时离开了中国。

相关单词

复数：thirties