老板的严厉批评丝毫没有让他感到不安。
The boss's harsh criticism didn't ___faze him at all.
尽管观众发出嘘声,这位演讲者依然镇定自若。
The speaker wasn't ___fazed by the audience's booing.
任何挑战都难不倒他;他在压力下依然保持冷静。
No challenge ever ___fazes him; he remains calm under pressure.