No one discovers a rarity by chance.

无论是谁都不会一下子就发现一件珍品。

Nothing happens by chance or by means of good luck.

没有事情是偶然出现或运气使然。

It was from words dropped by chance that, little by little, everything was revealed to me.

他无意中吐露的一些话逐渐使我搞清了他的历。

Combined, a high consumption of both red and processed meat could increase your chance of premature death by up to 29%.

结，大量食用红肉和加工肉会使你提前死亡的概率增加29%。

'Yes. He wouldn't knowingly hurt me, but by one careless word he could destroy, not my life, at least my chance of happiness.

“是的，他不会故意伤害我，但不小心说错一个字，他毁不掉我的生活，但也至少会夺走我寻求幸的机会。

He was a banker, when by chance he fell into a doze at day-break, the cobbler awoke him with his song. Having at length sent for the songster, he said to him, " How much a year do you earn, Master Gregory? "

他是个银行家，有时，他在黎明时分迷迷糊糊刚入睡，皮匠的歌声便把他吵醒了。后，银行家就叫人把这位皮匠歌手请，问道：“格列戈，你一年赚多少钱？”

Regular exercise is great for the heart, reducing your risk of stroke, and cutting your chance of cardiovascular disease by a third

经常锻炼对心脏益处多多，可以降低中风风险，减少三分之一患心血管疾病的几率。

I see. Bump into means to meet somebody by chance. So were they friendly?

无意中邂逅就是偶然遇见某个人。他们怎样，待人友善吗？

You didn't, by chance, buy anything at Shopping World while you were here?

你在这的时候，碰巧没有在购物世界买东西吧？

But Feynman did not earn his academic prowess by chance.

但费曼的学术成就并非偶然。

It just doesn't happen to them by chance.

这并不是偶然发生在他们身上的。

After all, all living creatures live by feeding on something else, whether it be plant or animal, dead or alive, and it is only by chance that such a fate is avoided.

因为一切生物都是靠吃别的东西活命的，不管这种东西是植物还是动物，死的还是活的，因此，生物偶尔才能避免被吃掉的命运。

Many of the first medicines were discovered by chance.

许多最早的药物都是偶然发现的。

A) ;;made it more effective by chance.

A）；；偶然使它更有效。

Actually the boss met her quite by chance the very day she was made redundant.

实际上，老板遇到她完全是个巧，就在她被解雇的那天。

My capital — Geneva's the second most populous city by chance.

我的首府——日内瓦是人口第二多的城市。

And if by chance he does, we'll throw him back into the sea.

就算他真了，我们也能把他赶回去。

The clustering of orbits like this is extremely unlikely to have happened just by chance.

像这样聚集在一的轨道极不可能是偶然发生的。

Now, the Germans just didn't come to that house by chance.

德国人不是偶然闯进他们家的。

By chance, he came across here in 1925.

1925年，他偶然发现了这。