A microscope is an optical instrument.

Suzhou Jin Long Optical Instrument Factory was built in 1998 in Suzhou.

苏州市金龙光学仪器厂于1998年建于苏州.

Quite accidently the answer to the mystery came tumbling into the police's lap.

真出乎意外,警察偶然找到了那疑案的答案.

Owing to the continual absence of all clue to the mystery, the popular excitement greatly increased.

由于这件疑案一直找不到什么线索, 人心也就越来越骚动了.

He had written out a confession. At last the long mystery was solved.

他写了一份坦白书. 这个长期的疑案终于解决了.

Quite accidentally, the police tumbled on the answer to the mystery.

警察出乎意外地找到了那疑案的答案.

The detective believes the missing gun is the key to the mystery.

那侦探认为那把丢失的枪是侦破这宗疑案的线索.

But Mr. Crabbe says it isn't clear whether consumers will appreciate standardization.

但格莱博表示,消费者是否会对饮食连锁店统一标准持赞赏态度仍是个问号.

What are the elusive characters ? Missing two letters or numbers?

请问下面这些费解的问号是什麽? 是遗失的两个字母或是数字?

TIllinoise calm no ugly pipe ; trapre calm remarkablecracklabel to simplest pretty.

世上无有丑陋的女孩子,只有不知该问号使自个显得漂亮的女孩子.

You have forgotten to put a query at the end of the sentence.

你忘了在句尾加个问号.

Put a question mark at the end of the sentence.

句末写上问号.

He put a query against [ by , next to ] the word " mild . ".

他在 [ 温厚 ] 这个字尾加上问号.

What are your views on the subject?

你对这一题目有何高见?

He kept off the subject throughout our conversation.

在我们整个谈话过程中,他避而不谈这个题目.

The doubt was still unsolved after his repeated explanations.

译文:虽经他一再解释,疑团仍然存在.

So 2 and 2 added up to 4 in the end.

就像2加2等于4一样,一切疑团都迎刃而解.

After he had read the letter , he was greatly perplexed.

鸿渐看后,疑团百出.

The doubt was still unresolved after his repeated explanation.

虽经他一再解释,疑团仍然存在.

A sudden impulse of curiosity sprang up in the his mind.

突然一阵好奇的冲动在他心里产生了疑团.

Though having been studied for two years, the mystery remains unsolved.

虽然经历了两年的调查, 这个疑团仍未解开.