occasion

[ə'keiʒən]

n.场合, 时机, 理由, 机会, 盛大场面
vt.引起, 致使

例句与用法：

I've met her on several occasions recently.

我最近见到过她好几次。

You should go there if occasion arises.

如果有机会，你应当到那里去。

There was no occasion to be so rude.

没有理由这样粗鲁。

I was not at home on that occasion.

那时我正好不在家。

I only wear a tie on special occasions.

我只在特殊场合才打领带。

词形变化：

动词过去式: occasioned | 动词过去分词: occasioned | 动词现在分词: occasioning | 动词第三人称单数: occasions |

详细释义：

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.

引起; 惹起[O1]

His rude behavior occasioned a quarrel.

他的无礼行为引起了一场争吵。

短语词组：

on occasion

1. 偶尔; 有时

She visits the city on occasion.

她有时到城里去。