I hadn t been reading for half an hour when I heard steps out side.

我看书还不到半小时，就在这时我听到外边有脚步声。

youdao

But I hadn't heard any of his songs in the past couple of years." In a nearby outdoor caf, in the scorching heat.

VOA: standard.2009.06.26

' He'd been keeping them secret, and it was the sound I hadn't heard in years except in slivers and splinters.

WSJ: Marty Stuart | Crossing Music Row | Cultural Conversation by Jim Fusilli

The centerpiece of my collection is a 1960s work entitled "Big Bertha" by a pop artist named Ben Johnson, whom I hadn't heard of before, or for that matter since.

WSJ: The Art of Collecting

Donkey Number 2 joined her when I got a phone call from a woman who described herself as a "Jewish donkey spiritualist, " a term I hadn't heard before and don't expect to hear again.

NPR: Excerpt: 'Dog Days'