我告诉过他，只要他认为是有用的事情，我愿效犬马之劳。

I told him that I am eager to serve in the future in any way he deems useful.

youdao

如有需解惑学道者，请电联鄙人：147-0527-1299（扬州移动号码）鄙人定当尽犬马之劳，竭诚为您解惑授业。

If you have doubts, person, please call my: 147-0527-1299 ( Yangzhou mobile number ) I will do serve like a dog or a horse, Tuition dedicated to your doubts.

youdao

如有需解惑学道者，请电联鄙人：147-0527-1299（扬州移动号码）鄙人定当尽犬马之劳，竭诚为您解惑授业。

If you have doubts, person, please call my: 147-0527-1299 ( Yangzhou mobile number ) I will do serve like a dog or a horse, Tuition dedicated to your doubts.

youdao