1.plunge into 突然陷入
Will the U. S. Economy plunge into deflation?
美国经济会陷入通货紧缩吗？

2.commit to 致力于
All honorees commit to improving air quality.
所有获奖者都致力于改善空气质量。

3.pay in blood 以血相抵
I pay in blood, but not my own.
我以血相抵，但非出自于我。