Relation of equality
[计] 相等关系
🧩 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
Food is necessary to maintain life.
食物是维持生命所必须的。
More of our worries come from within than from without.
烦恼发乎内者多于发乎外。
I used to travel by air a great deal when I was a boy.
我在幼年的时候，曾多次乘飞机旅行。