You can count on me.

你可以指望我。你可以依靠我。

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count on，依靠，依赖；指望，期望。To rely on, depend on; To be confident of
例句：
- I need more help with the project. 这个计划还得找人帮忙。
- Well, you can count on me. 那，你可以找我呀。
If there's anything I can do, count on me.
如果有我能做的事, 找我好了。