Definition
To perform an action that is beneficial or helpful to someone.
為（某人）提供幫助或服務。
You did me a great service by fixing my computer.
你幫我修好電腦，真是幫了我一個大忙。
She did me a service by taking care of my children.
她幫我照顧孩子，真是幫了我一個忙。
He did me a service by carrying the heavy things upstairs.
他幫我把重物搬上樓，真是幫了我一個忙。