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1·I've met him on several occasions.

我曾见过他几次。《牛津词典》

2·He has been late on numerous occasions.

他已经迟到过无数次了。《牛津词典》

3·It happened on three separate occasions.

这事在三个不同的场合发生过。《牛津词典》

4·He tends to get emotional on these occasions.

他在这些场合往往容易动感情。《牛津词典》

5·Trachsel has struck Bonds out on seven occasions.

特拉赫塞尔已经7次使邦兹三击不中出局了。《柯林斯英汉双解大词典》

6·He represented the nation on ceremonial occasions.

他在礼仪场合代表着国家。《柯林斯英汉双解大词典》

7·He had attempted to kill himself on several occasions.

他好几次都企图自杀。《柯林斯英汉双解大词典》

8·They have been seen together on two separate occasions.

他们有两次被人看见在一起。《牛津词典》

9·I can think of at least three occasions when he arrived late.

我记得他至少迟到过三次。《牛津词典》

10·I only use that on special occasions, so it's as good as new.

我只在特殊场合用，所以它完好如新。《柯林斯英汉双解大词典》

场合

1·It happened on three separate occasions.

这事在三个不同的场合发生过。《牛津词典》

2·He tends to get emotional on these occasions.

他在这些场合往往容易动感情。《牛津词典》

3·He represented the nation on ceremonial occasions.

他在礼仪场合代表着国家。《柯林斯英汉双解大词典》

4·I only use that on special occasions, so it's as good as new.

我只在特殊场合用，所以它完好如新。《柯林斯英汉双解大词典》

5·His wife made no secret of her hatred for the formal occasions.

他的妻子不隐瞒她对正式场合的厌恶。《柯林斯英汉双解大词典》

机会

1·Is it to celebrate those rare occasions when the majority views the world as I do?

当多数派和我的观点一致时，就可以欢呼了？ 毕竟这样的机会太少了。

2·Active lifestyles often provide older persons with regular occasions to make new friendships, maintain social networks, and interact with other people of all ages.

充满活力的生活方式常常为老年人定期提供机会，结交新的朋友，维持社交网络，并与各年龄组的其他人交往。

3·Israel has come close to securing his release on a number of occasions as part of a prisoner exchange but thus far without success.

以色列有很多机会通过交换来保证他获得自由，但是，目前尚未成功。

4·He has few occasions to speak English.

他很少有机会讲英语。

5·He has had few occasions to speak French.

他很少有机会讲法语。

(1)on many occasions许多次

(1)on various occasions在许多情况下