Dohc
abbr. 双顶置凸轮轴（Double Overhead Camshaft）
🗣️ 情景例句
Out with it!
说出来吧！
He will always be a slave who knows not how to earn and save.
不懂挣钱和积财，只能永远当奴才。
Strong players, but a weak team.
好球员，弱球队。