Mapp
abbr. methylacetylenepropadiene 甲基乙二酸丙二烯酯
🗣️ 情景例句
It helps enormously.
这个帮助很大。
Soorow is at parting if at meeting there be laughter.
离别多愁恨，相见尽笑声。
The most wonderful piece of machinery on show was Nasmyth's steam hammer.
其中最奇妙的是内史密斯的蒸汽锤。