Unified purchase and sale
[经] 统购统销
🧩 词语组成解析
a. 统一的；一致标准的
and
[ənd, ən,ænd]
conj. 和，与;而且;于是，然后;因此;
sale
[seil]
n. 卖，出卖;销售额，销售;销路;拍卖;
🗣️ 情景例句
Help yourself, please.
请随便。
The athletes competed for the honor of their country.
选手们为了国家的荣誉而互相竞赛。
'At ten to eight.I bought a paper and waited for the train.'
“7点50分。我买了张报纸，等着车来。”