re‧ly S3 W2 AC / rɪlaɪ / 动词 ( past tense and past participle relied , present participle relying , third person singular relies )

rely on/upon somebody/something 短语动词

1 to trust or depend on someone or something to do what you need or expect them to do → reliable , reliance :

I knew I could rely on David.

rely on somebody/something to do something

Many working women rely on relatives to help take care of their children.

rely on/upon somebody/something for

Many people now rely on the Internet for news.

2 to depend on something in order to continue to live or exist :

For its income, the company relies heavily on only a few contracts.

rely on/upon somebody/something for

They have to rely on the river for their water.