vt.

1. 维持；保持；使继续
   Ann and Mary maintained their friendship for the next thirty years.

   安妮和玛丽在此后的三十年中一直保持着她们之间的友谊。

2. 维修，保养
   Frank maintains his car very well.

   弗兰克把自己的车子保养得很好。

3. 坚持；主张；断言[+（that）]
   He maintains that he once saw a UFO.

   他坚持称自己曾看见过飞碟。

4. 供养，抚养；负担，支持
   Mr. Smith maintains his son at college.

   史密斯先生供养念大学的儿子。

5. 保卫，坚守

v.

1. cause or enable (a condition or situation) to continue.
   ▸keep at the same level or rate.
2. keep (a building, machine, etc.) in good condition by checking or repairing it regularly.
3. provide with necessities for life or existence.
   ▸archaic give one's support to; uphold.
4. assert something to be the case.