English translation for "a turn of the screw"

（非正式）困难情况下又添加的压力，雪上加霜

Similar Words：

"a tug-of-war" English translation, "a tuna" English translation, "a tuppenny-ha'penny affair" English translation, "a turkey" English translation, "a turn of phrase" English translation, "a turn off" English translation, "a turn on" English translation, "a turn-up" English translation, "a turn-up for the book" English translation, "a turn-up for the books" English translation