名词三十几；三十年代num.三十网络卅；三十个；三十的
名词
1. He lived in Canada in the thirties.
三十年代他住在加拿大。
1. 分：15分(fifteen)、30分(thirty)、40分(forty)网球比赛的记分方式是所有球类当中最奇特的,15分就是得1分,30分就是得2分,40分就是得3分. 用15分为记分法始于十五世纪,它是参照天文学中的六分仪而来. 六分仪与1/6个圆一样共有60度,
2. (三十)---- thirsty (口渴的)：62. thick (厚的)--- think (想) | 63. thirty (三十)---- thirsty (口渴的) | 64. watch (手表)--- wash (洗)
3. 叁十：thirtieth 第叁十 | thirty 叁十 | this 这个
1. (数字) 30
Thirty is the number 30.
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.
e.g. 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.
e.g. 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。
1. (数字) 30
Thirty is the number 30.
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.
e.g. 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.
e.g. 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。
保险
A：Here. Take these pills (three times/ twice/ ten times) every (day/ an hour/ thirty minutes).
这个，这种药每（天/小时/半小时）服用（3次/两次/10次）。
B：Does my insurance cover them?
是由保险金支付吗？