Mary's disappearance is a complete riddle.
玛丽的失踪完全是一个谜。
Eric could not solve the riddle.
埃里克猜不出这个谜。
Tom loved to riddle out the solution to problems.
汤姆喜欢找出解决问题的办法。
I am always hungry, I must always be fed. The finger I touch, will soon turn red. What am I?"
我总是很饿，必须一直被喂养。我碰到的手指，很快就会变红。我是什么？
（答案：火）
I have keys but can't open locks, nor can I turn on any locks. What am I?"
我有钥匙却不能开锁，也不能转动任何锁。我是什么？
（答案：钢琴）
I am light as a feather, yet even the strongest man cannot hold me for long. What am I?"
我轻如羽毛，但即使最强壮的人也无法长时间握住我。我是什么？
（答案：呼吸）
I go in hard, come out soft, and am never the same. What am I?"
我硬着进去，软着出来，而且从不相同。我是什么？
（答案：肥皂）
I am taken from a mine, and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?"
我来自矿场，被关在一个木箱里，从未被释放，但几乎每个人都用过我。我是什么？
（答案：铅笔）
I am always coming but never arrive. What am I?"
我总是在来，但从不抵达。我是什么？
（答案：明天）
I speak without a mouth and hear without ears. I have no body, but I come alive with wind. What am I?"
我没有嘴巴却能说话，没有耳朵却能听见。我没有身体，但风能让我活过来。我是什么？
（答案：回声）
I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?"
我没有生命，但我能生长；我没有肺，但我需要空气；我没有嘴巴，但水能杀死我。我是什么？
（答案：火）
I am not alive, but I grow; I don't have lungs, but I need oxygen; I don't have a mouth, but I need water to survive. What am I?"
我没有生命，但我能生长；我没有肺，但我需要氧气；我没有嘴巴，但我需要水来生存。我是什么？
（答案：植物）
I am a box that holds keys without locks, yet they can unlock your soul. What am I?"
我是一个盒子，里面装着没有锁的钥匙，但它们可以解锁你的灵魂。我是什么？
（答案：音乐盒）
"China's pesticide industry is riddled with low profitability and only global scale can improve that.
"Guo said that due to the geographical segmentation of the market, it is sometimes difficult for companies to expand their advantages to other areas and regions, because those areas are riddled with some low-efficiency manufacturers under local protection.
In early February, it began hiring from restaurants and retail chains big and small that were riddled with idle or excess manpower as well as a capital crunch.
Mid-March is here, but the spring seems to be elusive in China's residential property market, which is riddled with slow sales and hence resorting to fresh discounts to destock.
Join the Ancient Canal Lantern Riddle Challenge, the Wenchang Pavilion Canal Culture Challenge, and see how far you can get with your literary attainments.
However, the industry is riddled with high rate of botches and incidents, 40,000 cases annually, which damages the healthy development of the industry.
From December to July, more than 70 enterprises in certain sectors riddled with overcapacity signed agreements to launch the swaps, according to the commission.
The fall in M&A's of ChiNext companies meant that investors are no longer expecting M&A-related high growth, more so because in several cases, the acquired companies were subsequently found to be riddled with bad performance, Fu said.