Bipropargyl
联丙炔
🗣️ 情景例句
I want to put some of my good hangers in Grandpa's closet.
我想在爷爷的衣橱 放几个好的衣架。
I think he's still in bed.
我想，他还赖在床上。
and some of these propositions have been violently opposed.
对风俗的研究才是全面的，才会有收获。