A  small but powerful cannon could fire hundreds of small shot to saturate the ditch with  fire in case the enemy managed to break in.

一门虽小但威力巨大的大炮可以发射数百发小炮弹，让壕沟充满火力，以防敌人闯入。

" Why, hail that falls every evening here; and, till it comes close to me, it's like so much warm rain: but then it turns to hail over my head, and knocks me about like small shot" .

“为什么，这里每天晚上都会下冰雹；而且，在它靠近我之前，它就像一场温暖的雨：但后来它变成了冰雹，落在我的头上，像一颗小子弹一样把我击倒”。