但现实生活中的大学生 » But the reality in the lives of college students 含有杂质的合金 » Impurities of alloy 有一个男孩儿，就在排练的队伍离开，一个人跑到角落里去。
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沿着丁香湖绕一圈 » 경계를 따라 호수 정향 含有杂质的合金 » Containing impurities in alloys 他总是仔细认真地做作业。 » He always had to do their homework carefully.
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...参加多次重大迎宾活动 » Welcome to participate in many important activities 含有杂质的合金 » Alloys containing impurities 这张桌子有多长？ » How long is this table?
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