occasion 有理由的意思吗

恩
我查过字典了

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。

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