你最喜欢哪一个？
哪一个更重？
你们中间哪一位是王先生?
哪一个会做的更好？
The difficulty is which one to choose.
困难的是要选择哪一个。
哪一个更大？
How you going to know which one to go for?
你怎么知道该选哪一个呢？
No matter which one you are, it is at both extremes.
不管你是哪一个，都是在两个极端。
Rather speak of something at which one may laugh heartily.
说一些让人开怀大笑的事情吧。
A symbiotic relationship is an interaction between two or more species in which one species lives in or on another species.
共生关系是两个或多个物种之间的相互作用，其中一个物种生活在另一个物种体内，或依靠这一物种生活。
Gause performed numerous tow-species experiments in the laboratory, in which one of the species became extinct when only a single kind of resource was available.
高斯在实验室里进行了许多双物种实验，其中一个物种在只有一种单一资源的情况下就灭绝了。
Barcoding is a technique in which one or more short gene sequences, taken from a well-characterized portion of the genome, are used to identify a species through DNA analysis.
测序是一种技术，它是从具有明确特征的基因组提取的一个或多个短基因序列，并通过DNA 分析来识别一个物种。
He dictated a letter, which one of his clerks wrote out a beautiful round hand, and then the two brothers sat at the window a whole day watching for the right man to give it to.
他口述了一封信，其中一个员工用漂亮的圆体字写了下来。接着，两兄弟在窗边坐了一整天，等待把信交给一位合适的人。
"You go down that passageway over there."—"Which one?"
“你顺着那边的过道走。”—“哪个过道？”
Which one is not proper if we succeed?
如果我们取得成功的话，下列哪一种做法是不合适的？
Which one of the two products do you want?
这两种产品你想要哪一种？
Which one did Wood agree about China's anti-epidemic measures?
对于中国的抗疫措施，伍德赞同下列哪一点？
"Wow, I'm going to be like Essien!" And they started arguing which one would make it as a superstar.
“哇，我要成为埃辛了！”他们开始争论谁会成为超级巨星。
哪个是在前面的？
哪个更快呢？
Which one do you prefer, black tea or green tea?
您想要红茶还是绿茶呢？
Which one would you like, black coffee or black tea?
你喜欢喝什么，黑咖啡还是红茶？
Which one will you choose to be, a carrot, an egg or coffee?
你会选择胡萝卜、鸡蛋还是咖啡？
Which one costs me more gas? Using an Air conditioner or open windows?
哪个更费油？开空调还是开车窗？
You never know which one you will get, so there isn't a cure for each one.
你永远不知道你会得哪种病，所以不可能每种病都能有治愈的办法。
I can't tell which one is her best book as I am not familiar with her books.
我不知道哪一本是她最好的书，因为我不熟悉她的书。
After participants had tasted or smelled both samples, they indicated which one they preferred.
在参与者尝过或闻过两种样品后，他们指出他们更喜欢哪种。
Historical records document a group-oriented existence, in which one room was used for eating, entertaining guests, and sleeping.
历史记录记载了一种以群体为导向的生活方式——吃饭、招待客人和睡觉都在一个房间进行。
Actual loss will depend upon the particular frequencies to which one is exposed, and whether the sound is continuous or intermittent.
实际的损失将取决于暴露的特定频率，以及声音是连续的还是间歇的。
Parasitism is a kind of predator-prey relationship in which one organism, the parasite, derives its food at the expense of its symbiotic associate, the host.
寄生是一种捕食者与被捕食者之间的关系，寄生者利用共生伙伴——宿主来获取食物。
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