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
Mary, this is Stone's brother Jim.
玛丽，这是世通的兄弟吉姆。
How many pieces are you going to buy?
你要买几块？
Do they go to school in China?
他们在中国上学？