After a single shock, the infant mice learned to dodge the danger zone.

一次冲击之后，幼小老鼠知道躲避这个危险区域。

youdao

Tsien's group says it successfully targeted single, isolated memories, but what they mean is that their experimental mice forgot that a particular training chamber would deliver an electrical shock.

曾乔的小组表示已经成功定位某段单独的记忆，但实际上，他们指的是成功让小鼠忘记了某个放电室。

youdao

The single largest group — about 50 percent — showed very little sign of shock, despair, anxiety or intrusive thoughts (the hallmark symptoms of acute grief) even six months after their loss.

这个最大的单身群体--大概有50%--甚至在丧偶后的6个月内都没有表现出一点点震惊，绝望，愤怒或者侵入性思想（急性悲痛的标志性症状）的迹象。

youdao

These waves travel at the speed of sound, but when a jet travels at Mach 1 and above these waves merge into one single shock wave as they cannot get out of the way of each other quickly enough.

CNN: Bang goes the sonic boom

One problem with a single currency is that an external shock can hit some countries or regions harder than others.

ECONOMIST: Europe��s banking blues

Conditions can be quite a shock for those used to warm, single rooms, televisions and games consoles.

BBC: Knives out for conscription into Swiss army