You ought tomakea few discreet enquiries before you sign anything.
你应该审慎地询问清楚再签字。
《牛津词典》
2
If birds make their pupils large and small from time to time, this can be asign that they are excited or scared or angry.
如果鸟类的瞳孔时不时地变大变小,这可能是它们兴奋、害怕或生气的迹象。
3
I had a decision tomake. I could sign the bill into law and have a good road program paid for in an unfair way, or veto it and have no road program at all.