fleeting

动词 fleet:

1. move along rapidly and lightly; skim or dart
   同义词：flit, flutter, fleet, dart
2. disappear gradually
   同义词：evanesce, fade, blow over, pass off, fleet, pass

形容词 fleeting:

1. lasting for a markedly brief time
   同义词：fugitive, momentaneous, momentary

1. The author has managed to trace many incidents in which the long arm of confidence brought the heroine in fleeting touch with the members of the family.
   作者设法追溯了许多事件，在这些事件中，由于离奇的机遇，使女主角与这一家庭有了短时间的接触。
2. A faint or fleeting indication; a trace.
   模糊的暗示模糊的或一闪即逝的暗示; 迹象

fleet.ing

adj.（形容词）
Passing quickly; ephemeral:
飞逝的；短暂的：
例句：
.fleeting passions of fantasy.(Gloria Vanderbilt)See Synonyms at transient
.一闪而过的幻想激情.(格洛丽亚·范德比尔特)参见 transient

【引伸】
fleet.ingly
adv.（副词）
fleet.ingness
n.（名词）