不约而同: do or think the same without prior consulation; act in concert without previous arrangement; agree undesignedly; agree [fit] without precious consultation; an undesigned coincidence; be in
颂扬: praise; laud; extol; eulogize; chant the praise of 短语和例子颂扬某人 sing sb.'s praises; shower praises on sb.; be lavish [loud] in sb.'s praise; plaster sb. with praise
他们都不约而同地提出了这个问题: they all raised the question as if by prior agreement
她一讲完大家不约而同都鼓起掌来: spontaneous applause broke out as soon as she finished speaking