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- Why protein? Because it rebuilds your blood-sugar supply little by little. 为什么要吃富含蛋白质的食物?因为它可以逐渐地提高你的血糖供应量。
- Why Proteins Have to Die so we Shall Live? 为什么蛋白质消亡我们才会活下去?
- Whey, Casein, Soy; Why Protein Sources are Different.Applications for Endurance Athletes . 乳清蛋白、酪蛋白、大豆：耐力运动员的蛋白质来源为什么不同？
- Why proteins, which start as long, simple chains of amino acids manufactured by genes, spontaneously fold into the shapes they do remains one of the greatest unsolved mysteries in modern biology. 为什么蛋白质是以基因制造成的长长的氨基酸单链开始，而又会自动地折叠成它们以后的各种形状，仍是现代生物学上一个最大的未解之谜)。
- She knows why the metal is the good conductor. 她知道金属为什么是好的导体。
- Must you dash off? Why not stay for a cup of tea? 你一定要急急忙忙走吗？为何不留下喝杯茶呢？
- Is that why you don't want to go home? 这就是你不想回家的原因吗？
- That explains why she is not here. 那就说明了她不在这里的原因。
- It seems uncertain why he lost the election. 他落选的原因似乎并不清楚。
- Do you know why Mr Brown has a heavy heart? 你知道为什么布朗先生心情不愉快吗？
- I do not know why acids eat in metals. 我不知道酸腐蚀金属的原因。
- I have no idea why he resigned his post. 我不知道他为何辞去他的职务。
- He expounded the reasons why he did it. 他阐述了他做这件事的理由。
- The reasons why he did it are obscure. 他做那事的理由还不清楚。
- I couldn't cipher out why she was there. 我搞不清她为什么会在那儿。
- I don't know why she is hostile to me. 我不知道她为什么对我抱有敌意。
- Why is it that we should be afraid of him? 我们为什么要怕他呢？
- Do you know why she is so strange to him? 你知道她为什么对他如此冷淡吗？
- I can't figure out why he quit his job. 我琢磨不透他为什么要辞掉工作。
- I can't understand why your plan fell through. 我不懂你的计划为什么竟会失败。
