Upon hearing this, off they started.

一听到这个，他们就出发了。

youdao

Upon hearing that her grandmother was ill, she hurried back to her hometown in the countryside without any hesitation.

一听说奶奶病了，她就毫不犹豫地赶回了乡下老家。

youdao

A parent expresses fright upon hearing thunder, and the child sees this fear and develops the fear for himself.

父母一听到雷声就表现出受惊吓，孩子看到这种害怕后会则会发展出对他自己来说的害怕。

youdao

But Mr Trimble, upon hearing about the blast, rushed to Markethill to survey the damage.

ECONOMIST: Northern Ireland

Upon hearing the wiretap recordings, his story changed and some of the truth emerged.

CENTERFORSECURITYPOLICY: 10failures

"The joy was unreal, " Brian McFaul said upon hearing that his brother was safe.

CNN: STORY HIGHLIGHTS