1. We have to find ways of making the existing system work better.
    我们得找寻能使现行制度实施得更好的方法。

1. 现存的：但直至近期,商业回收(commercial retrieval)仅些地方,频繁的热流(heat flow)导致水以温泉(geyser)和热泉(hot spring)的形地热(geothermal)液体被认定为对于现存的(existing)商业系统不充分时,

2. 目前的：(B)文章最后两句指出,即使干旱突然停下来某些地区也不会结束苦难,因为,需要连续下几年特别大的冬雨,才能将目前的(existing)贮水量恢复到正常水位. 可见,几年来,水位已降至最低位. (B)第二段第四句(也即第二条建议)建议申请人去尽量多地获得公司背景信息,

1. （尤指与未来相对的）现存的，现行的，目前的
    Existing is used to describe something which is now present, available, or in operation, especially when you are contrasting it with something which is planned for the future.

existing的解释

    e.g. ...the need to improve existing products and develop new lines...
           改进现有产品、开发新生产线的需要
    e.g. Existing timbers are replaced or renewed...
           现有的木料进行了替换或翻新。

1. having existence or being or actuality

    e.g. an attempt to refine the existent machinery to make it more efficient
           much of the beluga caviar existing in the world is found in the Soviet Union and Iran

    Synonym: existent

2. presently existing

    e.g. the existing system

3. existing in something specified

    e.g. depletion of the oxygen existing in the bloodstream