My sister blenches at the very thought of changing a baby 's dirty nappy .

想到要换婴儿的脏尿布，我姐姐退缩了。

The nerve that never relaxes , the eye that never blenches , the thought that never wanders , are the masters of victory .

神经从不放松、眼神从不退缩、思想从不徘徊，这才是胜利的主人。