مفید بودن (فعل)be advantageous, be useful, be beneficial, be helpful, be of useفایده بخشیدن (فعل)be advantageous, be useful, be available, be profitable
come in handy ( =be useful )be of use ( to somebody/something ) But I have a feeling it will be of more use to you than it was to me+ عکس و لینک
