occasion 有理由的意思吗

occasion
n.
场合, 时机, 机会

occasion: [ ə'keiʒən ]
n. 场合,机会,理由
v. 致使,惹起,引起

词形变化:
动词过去式:occasioned 过去分词:occasioned 现在分词:occasioning 第三人称单数:occasions

例句与用法:
1. I only wear a tie on special occasions.
我只在特殊场合才打领带。

2. I was not at home on that occasion.
那时我正好不在家。

3. There was no occasion to be so rude.
没有理由这样粗鲁。

4. You should go there if occasion arises.
如果有机会，你应当到那里去。

5. I've met her on several occasions recently.
我最近见到过她好几次。


英英解释:
名词occasion:
1. an event that occurs at a critical time
同义词：juncture
2. a vaguely specified social event
同义词：affair, social occasion, function, social function
3. reason
4. the time of a particular event
5. an opportunity to do something

occasion
n.
1. 场合,时刻;重大活动,盛典[C]
2. 时机,机会[S][(+for)]
He seized the occasion to invite her home for dinner.
他抓住机会邀请她回家里吃饭。
3. 起因,近因[S][(+of)]
Her departure was the occasion of much sadness.
她的离别是令人十分悲伤的起因。
4. 理由;需要[U][(+for)][+to-v]
You have no occasion to buy another car.
你没有必要再买一辆汽车。
vt.
1. 引起;惹起[O1]
His rude behavior occasioned a quarrel.
他的无礼行为引起了一场争吵。

有啊

恩
我查过字典了

好像没理由的意思
可以译作：场合, 时机, 机会