当疾病控制努力逐步加强，尤其是通过大规模施用药物来控制疾病时，病原体被置于巨大的选择压力之下。
When disease control efforts are stepped up, especially through the mass administration of medicines, causative agents are put under enormous stress, which is expressed as selective pressure.
我们校准Memknobs内存负载，如图3所示，将主机置于足够的内存压力之下，以产生定期交换活动。
We calibrated the Memknobs memory load, shown in Figure 3, to place the host under enough memory pressure to cause regular swapping activity.
这是一场让你只看五分钟都值得去记住的比赛，赛事刚一开始主场作战的不莱梅就立即抢攻，企图马上将拜仁置于他们巨大的压力之下。
The opening minutes promised that this would also be a game to remember. Bremen started very aggressive and immediately attempted to put Bayern under pressure.
如今想起，我不禁感到惊奇，一个大老爷们把自己置于如此屈辱和压力之下该需要多大勇气，他究竟是怎样做到的呀——没有痛苦，也没有埋怨。
When I think of it now, I marvel at how much courage it must have taken for a grown man to subject himself to such indignity and stress. And at how he did it — without bitterness or complaint.
如今想起，我不禁感到惊奇，一个大老爷们把自己置于如此屈辱和压力之下该需要多大勇气，他究竟是怎样做到的呀——没有痛苦，也没有埋怨。
When I think of it now, I marvel at how much courage it must have taken for a grown man to subject himself to such indignity and stress. And at how he did it — without bitterness or complaint.
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