1. Jack assured himself that they did as they were told. 杰克确信他们是按照要求的那样去干的。
2. I can assure you, my friend. 我能向你保证,我的朋友。
3. I assure you that would never happen again. 我保证这种事情再也不会发生了。
英英解释
v.
1. make certain of
2. inform positively and with certainty and confidence
3. assure somebody of the truth of something with the intention of giving the listener confidence
4. be careful or certain to do something; make certain of something
5. cause to feel sure; give reassurance to
6. make a promise or commitment