dalapon

dal.a.pon

n.（名词）
An organic acid, C3H 4Cl 2O 2, used as a herbicide that selectively kills grasses and other monocotyledons.
茅草枯：一种有机酸，C3H 4Cl 2O 2，用作一种除草剂，有选择地除去草和别的单子叶植物

来源：
Probably d(i)-
可能为 d(i)-
al(ph)a
al(ph)a
p(ropi)on(ic acid)
p(ropi)on(ic acid)