Replaceability
更换性, 可代换性, 替换性
🗣️ 情景例句
He never speaks unless he is spoken to.
除非别人先对他开口，他从不先开口。
Say not all that you know, believe not all that you hear.
莫道全所知，莫信全所闻。
They cut big pieces of metal into small pieces.
它们把大块的金属切成小块。