And the announcement a month later of a non-aggression treaty between Germany and the Soviet Union gave Tokyo even more cause for concern.

VOA: special.2011.05.26

So, if I wanted to cause you to feel moral concern for a fetus, I would do well to describe it as a pre-born child.

所以如果我想你对胎儿产生道德关怀，我最好就称它为未出生的婴儿。

耶鲁公开课 - 心理学导论课程节选

But he says it is cause for concern because it is a new strain, and people have not built up an immunity to it.

VOA: standard.2009.05.01