例句與造句

1. Each pellet was placed in the end of a shotshell in place of the regular powder charge and primer .
   每個(gè)點(diǎn)火藥片放在實(shí)驗(yàn)彈的一端，代替正式的火藥和擊發(fā)藥。
2. It's difficult to find regular powder in a sentence. 用regular powder造句挺難的