请问“You can count on it.”怎么翻译？谢谢！

You can count on it属于生活中英语日常用语五星级句子，
意思是:你尽管相信好了，尽管放心
如：
A: Do you think he will come to my birthday party?
B: You can count on it.

您能对此计数．

你尽管放心好了！