He could rest only when he was too drained of energy to fret further.
只有当他精疲力竭无力再操心时他才能得以休息。
《柯林斯高阶英汉双解学习词典》
The group has also developed a FRET sensor for sucrose a major transport sugar in plants.
该研究小组同时也发明了一种针对蔗糖的荧光共振能量转移传感器.
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Molly: Don't fret. Most big hotels have at least two western restaurants.
莫莉: 别担心, 大多数大饭店最少有两家西餐厅.
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In Barcelona people fret that its vibrations may topple the Sagrada Familia cathedral.
巴萨罗那的居民担心AVE产生的震动可能造成圣家族教堂的倒塌.
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If you don't have time to consult a psychiatrist each week, don't fret.
如果你不是每个星期都有时间看精神科医生, 不用烦恼.
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