Pdg
abbr. 超星阅读器文件
🗣️ 情景例句
But when do they do it?
但是什么时候动手术？
An empty bag cannot stand upright.
空袋不能直立。
Their parents usually tell them that Father Christmas will come during the night.
他们的父亲通常告诉他们，夜间圣诞老人会来的。