exacting

1. ADJ You use exacting to describe something or someone that demands hard work and a great deal of care. 費(fèi)勁的; 難辦的

She didn't think that he was well enough to carry out such an exacting task. 她認(rèn)爲(wèi)他身躰不是很好，不能執(zhí)行如此艱巨的任務(wù)。