场合的英文：
situation
occasion

参考例句：

A funeral is a sombre occasion.
葬礼现场是个忧郁的场合。

Long flowing outer garment used for official or ceremonial occasions.
正式场合穿的平滑的长外衣。

His formal style of speaking is appropriate to the occasion.
他郑重其事的讲话方式适合于那个场合。

a nonce word
(为某一场合或特殊需要)临时造的词,临时用语

a sociable occasion; enjoyed a sociable chat; a sociable conversation; Americans are sociable and gregarious.
社交场合；享受一场愉快的交谈；友善的交谈；美国人好社交且喜群居。

One who does not participate in the activity at a social event because of shyness or unpopularity.
壁花在社交场合因羞涩或受人冷落而不参加某一活动之人

The result declared:the thinki ng of fractal improves the ratio of compression and speed of encode and decode.
结果表明：分形思想提高了图像压缩比和编码、解码的速度 ,特别适于一次压缩、多次解压缩的场合。

From this time Captain Wentworth and Anne Elliot were repeatedly in the same circle
从此以后温特沃思海军上校和安妮·埃利奥特便经常出入同一社交场合。

In the presence of moisture, nickel, Monel, Hastelloy A or B, platinum, or gold provide good resistance to attack.
在有水蒸汽存在的场合，镍、蒙乃尔铜镍合金、哈司特镍合金A或B、铂或金提供了良好的防侵蚀能力。

A solemn occasion; ceremonial garb.
庄重的场合；正式的服装。

situation是什么意思：
n. 情况；状况；局面；处境，境遇；位置；地点

appreciation [of situation]
判断〔局势〕

mercurial situation
易变的形势

a survey of the situation, subject
对情况、 问题的概括论述

The situation had rapidly deteriorated.
局势很快恶化了。

The situation has been greatly transformed.
形势已经大大好转。

occasion是什么意思：
n. 场合，盛典；时机
v. 引起，惹起

Well, it's a big occasion.
嗯，这个场面很宏大。

On this occasion the lodge sent a carriage.
为了当晚的演出，支部派了马车来接她。

A solemn occasion; ceremonial garb.
庄重的场合；正式的服装。

It is an occasion for all the family to celebrate.
这是个值得举家庆祝的时刻。

You have no occasion to buy another car.
你没有必要再买一辆汽车。