Long standing
维持；存在已久的
🧩 词语组成解析
long
[lɔŋ]
adj. 长的;长时间的;冗长的，过长的;长音的;
adv. 长久地;始终;遥远地;
n. 长时间，长时期;[语]长音节;（服装的）长尺寸;长裤;
vi. 渴望，极想;
standing
['stændiŋ]
n. 起立，站立;身份，地位;持续时间;
adj. 长期有效的;直立的;固定的;
v. 站立;坚持不变;
🗣️ 情景例句
because she's had to go to Chicago on a business trip and can't leave till tonight.
因为她得到芝加哥出差，而且要到今晚才能脱身。
I'll know when the time comes.
到时候就知道了。
He explained that he had tried to fix the air-line to the supply line that ran round the port but could not because the fittings did not match.
他解释说他想供气管安装到铺设在码头周围的供应管上，但因为接头不相配而接不上。