1.
This is a nation whose most fundamental social relationship is the casual acquaintance.
在这个国家，最基本的社会关系是偶然相识的人。
2.
Strangers would look long at her in casually passing by, and grow momentarily fascinated by her freshness.
素不相识的人，偶然走过，会注目久视，时叫她的清新鲜嫩所迷
3.
Casually, esp in a sexual context
偶然结识的人（尤指涉及性关系的）
4.
their accidental meeting led to a renewal of their friendship; seek help from casual passers-by; a casual meeting; a chance occurrence.
意外的相遇使他们恢复了友谊；向偶然路过的路人寻求帮助；偶然的相遇；偶然事件。
5.
If the same two persons meet again by chance,
如果俩人偶然再相见，
6.
a casual or unexpected convergence.
偶然的或意外的相遇。
7.
It's a chance meeting.
那是一次偶然的相遇。
8.
They met by pure accident.
他们的相见纯属偶然.
9.
Yesterday I fell in upon an old acquaintance of mine.
昨天我偶然遇到一位老相识。
10.
The Meaning of Value and Humanity of Occasionality --Researching Occasionality in German Ideology;
偶然性的价值观内涵及其人学意义——《德意志意识形态》中的偶然性思想研究
11.
An Incidental Meeting,the Eternal Brand--Admiring and Reviewing XU Zhi-mo s Contingency;
偶然的相逢 永远的烙印——论徐志摩诗歌《偶然》
12.
(with sb)begin(a friendship,an acquaintance,a conversation,etc)esp casually
（与某人）开始（交往、认识、交谈等）（尤指偶然）
13.
a person who passes by casually or by chance.
偶然或意外经过的人。
14.
"One is like a fallen flower,just as fate is determined by casualty"--Reflections on Ancients "Theory of Casualty" about Fate;
“人如落花,命随偶然”——看古人的命运“偶然说”有感
15.
a casual meeting with a person of thing.
与一个人或事偶然地相遇。
16.
dependent upon or characterized by chance.
偶然决定的或偶然性。
17.
The quality or condition of being fortuitous.
偶然性,偶然偶然发生的性质或状态
18.
The thing was quite adverse to the experience of humanity, and absolutely and utterly impossible.
这与人类的常识相悖，全然不可能。