若非

1.The government will have to grasp the nettle. If they don’t, the traffic congestion is going to get out of control.

政府对此事采取果断的手段。若非如此，交通堵塞问题一发可收拾。

2.The only honourable way to pass a law exam is to make a few notes on the cuff and take a quick shufti at them during the occasional visit to the bog.

录小抄于袖口，若偶然陷入泥，挥袖撇之，若非如此，考试体面成绩无从也。