Three-variance system
[经] 差异三分法
🧩 词语组成解析
three
[θri]
num. 三;三个;第三（章，页等）;
n. 三岁;三个人[东西];三，三个;
adj. 三的;三个的;
variance
['vɛəriəns]
n. 变化，变动;不一致;分歧;<数>方差;
🗣️ 情景例句
Good morning, Mr. Smith. I brought the contract you are been looking for.
上午好，斯密司先生。我带来了你要等待的合同。
I'm really sorry, but I seem to have misplaced your scarf.
真对不起，我忘记把你的围巾对丢在什么地方了。
Ships may be delayed by storms; flights may be cancelled because of bad weather, but trains must be on time.
轮船船期可能因风暴而推延，飞机航班可能因恶劣天气而取消，唯有火车必然是准点的。