vi. 倾听

[ verb ]
listen; used mostly in the imperative
<verb.perception> harken hearken

Hark \Hark\ (h[aum]rk), v. i. [OE. herken. See {Hearken}.]
To listen; to hearken. [Now rare, except in the imperative
form used as an interjection, Hark! listen.] --Hudibras.

{Hark away!} {Hark back!} {Hark forward!} (Sporting), cries
used to incite and guide hounds in hunting.

{To hark back}, to go back for a fresh start, as when one has
wandered from his direct course, or made a digression.

He must have overshot the mark, and must hark back.
--Haggard.

He harked back to the subject. --W. E.
Norris.