2) It is necessary for sB. to do sth. (It is necessary that ...) ...
是必须的;必须...
3) It is necessary for sb. to do sth. (It is necessary that
是必须的; 必须...
4) to discern between right and wrong; to draw a line between right and wrong; to distinguish right from wrong; to differentiate between right and wrong
分清是非
5) need to; must
非..不可;必须
6) Is the medical examination obligatory ?
体检是必须的吗?
补充资料:必须
①表示事理上和情理上的必要;一定要:学习~刻苦钻研。②加强命令语气:明天你~来。‖‘必须’的否定是‘无须’、‘不须’或‘不必’。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条