But it was a chance stumbling upon a run-down, yet functional, laboratory in his late grandfather's home that solidified the young man's enthusiasm for chemistry.

但是一次偶然的机会，他发现已故祖父家有一个破旧但功能齐全的实验室，正是这个发现使得这位年轻人确定了他对化学的热情。

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One of the soldiers chance upon a girl from a mysterious tribe, that is cursed such that its members who fornicate with outsiders will, together with them, transform into wolves.

一个士兵偶然发现了一个来自神奇部落的女孩，这个部落遭到诅咒，如果它的成员和其他部落人私通，和他们在一起，就会变成狼。

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It happened one day that the son of a king, while riding in the forest, came by chance upon the dwarfs' house and asked for a night's lodging.

有天有件事情发生了，一个国王的儿子，当他骑马来到这个森林，偶尔来到矮人们的房子晚上要求投宿。

youdao

It was, accordingly, declared Germany's first victim, a chance pounced upon by Austria's post-war politicians (many of whom were themselves victims of Nazism).

ECONOMIST: Austria since Hitler

By September 2009 the voters had finally had enough and decided to give the (greatly strengthened) opposition Democratic Party of Japan (DPJ) a chance, upon which its mercurial and barely competent leader Hatoyama Yukio assumed the Prime Ministership, only to fail dismally, and to be replaced after less than a year by Kan Naoto.

FORBES: Does Japan's LDP Have a Winner in Former PM Abe? I am Betting on Noda.

It's not every day you chance upon a Sri Lankan British singer with a Kingston-meets-cockney brogue, rapping about revolution.

NPR: M.I.A.: Rapper and Daughter of Revolution