能找到信号源吗？
ROBERT: Tu peux déterminer la source ? (can you find the source ?)
他找到了那盏蓝灯，给了她一个信号，让她把他拉上来。
He found the blue light, and made her a signal to draw him up again.
嗅觉能发出信号，告诉有危险动物接近，或者告诉人类找到食物源。
Smell could signal the approach of a dangerous animal, or lead to a food source.
一旦登乘，人们都安静就坐，凝视着手机屏幕，希望可以找到一丝渺茫的信号。
Once aboard, people sat quietly, gazing at their cellphones in hope of an elusive signal.
一旦登乘，人们都安静就坐，凝视着手机屏幕，希望可以找到一丝渺茫的信号。
Once aboard, people sat quietly, gazing at their cellphones in hope of an elusive signal.
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