目的 :建立气相色谱法测定化妆品中的防腐剂凯松。
Objective:To develop a GC method to determine Kathon in cosmetic.
去年五月,在他的第五十二个马拉松上,他打破了三个小时的障碍,用2小时58分23秒跑完了驻韩美军凯西军营的马拉松。
Nope, sorry. But last May, in his 52nd marathon, Noble broke through the 3-hour barrier with a 2:58:23 at the Camp Casey U.S. Army base in South Korea.
凯文:噢,我刚才是说,关于这个马拉松,你也许是在自欺欺人。
Kevin: Well, I am just saying, maybe you are fooling yourself about the marathon.
凯文:哦,那么,它很可能不是马拉松。
凯文:哦,那么,它很可能不是马拉松。
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