国际音标

英 [prəˈlɒŋ]

美 [prəˈlɔːŋ]

中文解释

vt. 延长, 拖延, 拖长

英英词典

lengthen in time; cause to be or last longer

同义词：protract, extend, draw out

lengthen or extend in duration or space

同义词：sustain, keep up

例句应用

1、The method can effectively prolong steady running time under high ethyl benzene conversion rate and styrene selectivity.

该方法可以有效延长在高的乙苯转化率和苯乙烯选择性下的稳定运转时间。

2、The design of absorb tin gun and soldering iron is lightweight, suitable for prolonged use.
吸锡枪及焊铁设计轻巧，适合长时间使用。

3、It's safe to eat foods that have been irradiated to prolong their shelf life.

食用经过辐照处理以延长保存期的食品是安全的。