1.Regretably I didn't get a picture of him as he disappeared quickly down the line... drat!

1.惜太快就在人群消失，我未能拍到……恶！

2.Regretably, I cannot watch the lively scene in the meeting and the presents distributed by companies present at the meeting .

2.遗憾的是未能看到此次展会的面和参展商派发的赠品。