be weak in

Year-on-year declines in exports may be slowing, but external demand remains too weak to jeopardise the recovery with higher exchange rates particularly in an avowedly mercantilist part of the globe.

出口的同比下降可能在放缓，但外部需求仍过于疲弱，一旦汇率上升将危及经济复苏尤其是在公然奉行重商主义的地区。

At least, in weak interaction, neutrinos may be superluminal particles.

至少在弱相互作用中, 中微子可能是超光速粒子.

He is said to be a crack shot, despite weak vision in one eye.

尽管一只眼视力较弱，他仍被称为神枪手。

You must be weak in the head if you think I'll agree to that.

如果你以为我会同意那事,你一定是脑子不管用了.

Conclusion: The using of high dosage should be carefull in the senile and weak paitents.

结论: 药物剂量偏大,老年及体质弱的肺结核病人慎用.

The weak signal in laser clutter background can be detected by means of the prediction error.

利用预测误差检测到激光杂波中的有用弱信号.

They may be compared to the weak signal coming in over a long-distance telephone line.

它们可以比做经过远距离电话线而来的弱信号.