Now and then a few remaining bacteria carry special resistance to antibiotics -- which is what kept them alive in the first place.
而这时,这些细菌中有一部分对抗生素具有抵抗性—正是因为这种抵抗性才使他们存活了下来。
The Federal Reserve's policy of driving interest rates down toward zero may have kept the financial system alive. But it is killing savers, and driving them to do desperate things.
美联储(Fed)保持零利率目标的政策或许令金融系统保持了活力,但却让储户难受至极,促使他们孤注一掷。
Traditions can be kept alive by keeping practicing and performing them.
传统习俗需要遵循,还需要去实践才能保留下来。
Traditions can be kept alive by keeping practicing and performing them.
传统习俗需要遵循,还需要去实践才能保留下来。
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