vt.

1. 向……保证，担保[（+of）][O5]
   I can assure you of the reliability of the information.

   我向你保证这消息可靠。

   The captain of the ship assured the passengers that there was no danger.

   船长向乘客保证没有危险。

2. 使确信，使放心[（+of）][O5]
   We assured our clients of an enjoyable holiday.

   我们使游客确信能过一个愉快的假期。

3. （后接oneself）使弄清楚，使确定[O5]
   They assured themselves that the bridge was safe before crossing it.

   他们直到弄清楚那座桥确实安全后才通过。

4. 确保，保障
   Her future was assured.

   她的未来是有保障的。

5. 保证给予[O1]

v.

1. tell someone something positively in order to dispel potential doubts.
2. make (something) certain to happen.
3. chiefly Brit. cover by assurance.
   ▸secure the future payment of (an amount) with insurance.