A bomb blast had weakened an area of brick on the back wall.

炸弹爆炸使后墙的块砖都松动了。

《柯林斯英汉双解大词典》

At that point there was a huge blast and in all the smoke I managed to run back down the fire escape.

就在那时候发生了一次很大的爆炸，在浓烟中我设法从防火通道中跑了下来。

youdao

Start your run into the wind and finish with it at your back, so the breeze doesn't blast you after you've broken a sweat.

起跑时迎着风跑，回来时背着风跑，这样刺骨的寒风就不会在你出汗以后还肆掠地打在你身上了。

youdao

That brought Lee to the crease, and he was happy to support Hussey with some obdurate defence - although he did well to blast back-to-back fours through the covers against off-spinner Virender Sehwag.

BBC: Hussey knock keeps Aussies on top

Conference favourites Yeovil were rocked by a two-goal blast in the first half, but hit back to share the spoils at home to Gravesend through Terry Skiverton's last-gasp goal.

BBC: Yeovil 2-2 Gravesend

He was helped up by a race official and crossed the finish line in fourth place among the 75-79 age group at 4:10:25 (4:03:47 net), 41 seconds after the blast, and continued the remaining half-mile back to his hotel.

FORBES: Crumpled Elder Runner at Boston Marathon is Well