N-COUNT In grammar, a question tag is a very short clause at the end of a statement which changes the statement into a question. For example, in "She said half price, didn't she?," the words "didn't she" are a question tag. 疑问句尾
Once registered, users can have the bot search the Web by Web site tags, colors, feeds or simply through asking a question.
一旦注册成功，用户就可以通过颜色，标签，给它喂食或者是问它一个简单的问题来让机器人进行搜索。
Question: What's so great about the new JET tags?
问：新的JET标记有何出众之处？
They used colored fluorescent tags to identify the groups in question in embryos, allowing the correct cells to be harvested.
他们运用荧光染料分组标记了老鼠胚胎中的细胞组织，这样就方便了所需细胞的识别和提取。
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