动词drag outlengthenextendelongatestretch

及物动词shortencurtail

1. prolong

1. People have all along been seeking to prolong life.
    人们一直在寻求长寿之道。

2. The delegation decided to prolong their visit by one week.
    代表团决定把访问延长一个星期。

1. 延长：prologue 开场白,序言 | prolong 延长 | prominent 显著的

2. 延长;伸展：profile 剖面, 侧面, 外形, 轮廓 | prolong延长;伸展 | propeller螺旋桨;推进器

3. 放长：draw-string neck 抽带领 | prolong 放长 | feather-edge 易褶薄边

4.

4. 延伸器：projection welding 凸焊 | prolong 延伸器 | promethium 钷

1. 延长；拉长；拖长
    To prolong something means to make it last longer.

    e.g. Mr Chesler said foreign military aid was prolonging the war...
           切斯勒先生说国外的军事援助拉长了战事。
    e.g. The actual action of the drug can be prolonged significantly.
           这种药物实际起作用的时间可以大大延长。

1. lengthen in time
    cause to be or last longer

    e.g. We prolonged our stay
           She extended her visit by another day
           The meeting was drawn out until midnight

    Synonym: protractextenddraw out

2. lengthen or extend in duration or space

    e.g. We sustained the diplomatic negotiations as long as possible
           prolong the treatment of the patient
           keep up the good work

    Synonym: sustainkeep up