timing exactly 准确计时
GPS has the ability of precisely positioning and exactly timing, and measuring speed.
GPS的作用表现为精确的定位能力和准确的定时和测速能力。
Seismologists warn, however, that no one should wait for them to deliver more precise timing on when exactly these temblors will hit.
然而,地震学家警告说,人们不能只是等着地震学家来提供这些地震何时将会发生的精确时间(因为他们无法准确预测地震发生的时间)。
But it is possible for investors to take advantage of bear markets, even if they do not get their timing exactly right.
但即使投资者不是分毫不差掌握时机,也可能利用到熊市。
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