He put a seal on the box.

他在箱子上加上了封条。

youdao

But the Wallabies held their nerve and a late try from Will Genia put the seal on a solid opening to their campaign.

BBC: Australia 30-13 South Africa

Harmison flashed another catch behind, Mitch Claydon was lbw to Sajid Mahmood, who then took a simple catch at mid-off to put the seal on a miserable effort from Durham 20 minutes before lunch on day three.

BBC: Anderson stars in Lancashire romp

Giteau landed the extras from wide out to put the seal on a polished individual performance.

BBC: England 14-28 Australia