意外地发现或想到某事：指在某种情况下，突然或偶然地发现或想到某事。
find unexpectedly
同义词： fall upon / strike / come upon / chance upon / come across / chance on / happen upon / attain / discover
... come upon 偶遇 happen upon 偶然碰到(偶然发现)... light upon 偶然遇见 ...
...lose tra... light up照亮；点烟；开街灯或... light upon（偶然）发现... line out用线画出...
偶然遇见
Can anybody cast light upon how this chair got broken?
谁能查清楚这把椅子坏掉的原因因呢?。
Whom would they discern there, with the red eastern light upon his brow?
他们会依稀看到那里站着一个人，额上映着东方的红光，那会是谁呢？
And God set them in the firmament of the heaven to give light upon the earth.
就把这些光摆列在天空，普照在地上。
I attempted to keep the ray of light upon the eye.
VOA : special.2009.05.16
With the morning light, Aylmer opened his eyes upon his wife's face and recognized the sign of imperfection.
VOA : special.2009.09.26
Finally,a single ray of light shot from out and fell full upon the vulture eye.
VOA : special.2009.05.16
May God shine a light upon the fallen and comfort the mourning.
The picture they reveal of failing ambitions, both imperial and economic, throws light upon themes and impulses that are still with us today, from financial bubbles to the aftermath of empire.
As people filled the empty units, I was intrigued not only by the implied stories within the frame of the glass but also by the play of light upon the subjects, the shadows, the framing of the structure.