Externalities
(externality 的复数) n. 外形, 外在性
🗣️ 情景例句
She has no idea that the party is in her honor.
她不知道这个派对是为她办的。
He should have a long spoon that sups with the devil.
跟坏人打交道，要特别小心。
She's sitting under the tree.
她正在树荫下坐着。