原: former, original, primary, raw, level, cause, source...
英文: English (language)...
天伦之乐: family love and joy, domestic bliss...
须知: key information, instructions, it must be borne in mind...
什么样: what kind, what sort, what appearance...
主动: passive, drive (of gears and shafts etc)...
不懈: untiring, unremitting, indefatigable...
培训: to cultivate, to train, to groom, training...
争端: dispute, controversy, conflict...
困境: predicament, plight...
