Thirty seconds later she reappeared and beckoned them forward.

30秒钟后她再次露面，招呼他们向前走。

《柯林斯英汉双解大词典》

Thirty seconds later, I feel him poking my belly again!

没过一会儿，我感到他又在戳我的肚脐！

youdao

When TIROS-1 acquired frame 3 thirty seconds later, the satellite had moved northwest.

30秒后，当泰洛斯1号卫星拍摄第3帧图像时，它已经移向了西北方。

youdao

Other kids would stare directly at the marshmallow and then ring the bell thirty seconds later.

NEWYORKER: Don��t!

Thirty seconds later both the banners and their owners had gone.

BBC: The Merchant of Venice: A protest within a play

Thirty seconds later, it might seem more like one guy in a vast room, skidding between machines set too far apart, trying to trigger samples and stab a few notes out of a guitar or spit some unintelligible lyrics into a microphone on his way toward the drum machine.

NPR: A Spaz-Funk Marching Band's Riot of Unpredictability