They don't look like a married couple but more like friends.
（2）兩個、一對（人或東西）；幾個（a couple of+複數名詞）
Strictly speaking, “a couple” means two and a few means three or more. In modern colloquial English, some people will use “a couple” to mean more than two or a few.
嚴格說來，a couple就是指兩個或一對，而a few指三個或三個以上。在現代的口語英語中，有些人用a couple代表兩個以上或者一些。
Sue showed great courage throughout her illness. 蘇在整個生病過程都展現了很大的勇氣。（show展現、throughout從頭到尾、illness生病）
＊courage to do something 做…的勇氣
Gradually I lost the courage to speak out about anything. 我逐漸失去公開發表任何事情的勇氣。（gradually逐漸、speak out大聲說出/公開說出）
He did not have the courage to tell Nicola that he was ending their affair. 他沒有勇氣告訴尼可拉他要結束戀情。（affair戀愛情事）
summon/pluck up the courage （to do something）（= find the courage to do something）提起勇氣做…、鼓起勇氣…
I plucked up the courage to go out by myself.
Driving again after his accident must have taken a lot of courage （ = needed courage）.
他出車禍過後又自行開車一定鼓起了很大的勇氣。（must have + pp = 當時一定…＜對於過去的猜測＞）