Two-variance system
[经] 差异两分法
🧩 词语组成解析
two
[tu]
n. 两个;两个东西;两点钟;一对;
adj. 两个的;我同;
num. 两个;第二;二;
variance
['vɛəriəns]
n. 变化，变动;不一致;分歧;<数>方差;
🗣️ 情景例句
What am I supposed to do?
我该做什么？，
What have you decided?
你决定了什么？
Are you going to ship this by air?
这批货你要用空运的吗？