assist

vt.

1. 帮助，协助[（+with/in）][O2]
   We asked him to assist us in designing a new bridge.

   我们请他帮助我们设计一座新桥。

2. 支持，促进

vi.

1. 帮助，协助[（+with/in）]
   He assisted in designing the new bridge.

   他协助设计那条新桥。

2. 参加[（+in）]
3. 到场，出席[（+at）]
   She refused to assist at the reception for reasons unknown.

   不知什么缘故她不肯出席招待会。