Other times they come whistling towards you

还有的时候炮弹伴随着哨声靠近
in a thoughtful sort of a way,

还真是体贴
and then go, "Crump!" and the screw-cap flies off,

然后"砰"一声螺旋帽飞了
hurtling through the air, screaming.

撕喊着穿过空气
There's one kind of shell

有一种炮弹
which comes with a crescendo like an express train, only faster.

炮声渐强像特快列车但比它更快
Another kind makes a noise like tearing calico,

还有一种发出撕裂棉布的声音
louder and louder.

一声比一声响
The largest kind of the ones which burst in the sky

最响的要数在空中炸开的那种
make a double crack, like...

发出两声巨响就像...
wet canvas being shaken out by a giant.

巨人甩湿帆布的声音
Such immense explosions to kill such...

用破坏力那么强的炸弹去杀死那么...