to count on (someone)

to count on (someone) (to rely on/depend on [someone])

Eg 1:

A: Are you sure you can help me with this?

B: Sure. Don’t worry! You can count on me!

Eg 2:

A: Are you ready for your meeting in Korea?

B: Yes, but I don’t speak Korean, so I am counting on my interpreter to tell me what is going on!

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Who can you count on for help when you are in trouble?