Brown ring test
[化] 棕环试验
🧩 词语组成解析
brown
[braʊn]
adj. 棕色的;褐色的;被晒黑的;未去壳的;
n. 褐色;棕色;
v. 变成棕色;成褐色;晒黑;烤得焦黄;
ring
[riŋ]
n. 戒指，指环;铃声，钟声;环形物;拳击场;
vt. 形成环状;环绕;使（例如铃）响;打电话给;
vi. 按铃，敲钟;回响;成环形;
🗣️ 情景例句
She took a medical course.
她选读医学课程。
We are thinking of expanding into the Chinese market.
我们想把生意扩大到中国市场。
'At what time did you arrive at the station?'
“您几点钟到的火车站？”