certainly的同义词有:sure、without doubt、of course、that's to be sure。
双语例句:
1、I can certainly feel the effects of too many late nights.
我当然能感受到熬夜太多产生的影响。
2、Beating the world champions is certainly a big ask for the team.
这个队要打败世界冠军当然难度很大。
3、Certainly, the early years are crucial to a child's development.
毫无疑问,幼年对儿童的成长至关重要。
4、We've certainly improved on last year's figures.
我们的业绩的确超过了去年的数字。
5、You've certainly made an excellent job of the kitchen.
你们把厨房弄得好极了。
6、Without treatment, she will almost certainly die.
要是不治疗,她十有八九会死。
7、The news was certainly a weight off my mind.
这个消息真是去掉了我心里的重担。