Store-bought
辅助 Assistant= shop-bought
🧩 词语组成解析
store
[stɔr]
n. 商店;贮存物;仓库;大量;
v. 贮存;（在计算机里）存储;
bought
[bɔt]
v. 购买，购得( buy的过去式和过去分词 );做出牺牲以获得;够支付;买通;
🗣️ 情景例句
I just called to tell you
我打电话是想告诉你
I hope he will meet me at the airport.
我希望他能到机场接我。
Ethanol is more effective at a concentration of 50-70 percent;
乙醇的浓度为50％至70％时比较有效，