Plane of symmetry
[化] 对称面
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
How can I reward your help?
我怎样才能报答你的帮助呢？
A cock is valiant on his own dunghill.
夜郎自大。
Of course, everyone likes presents.
当然，每一个人都喜欢礼物。