Copper stains
[化] 铜色
🧩 词语组成解析
copper
['kɑpɚ]
n. 铜;铜币;紫铜色;警察;
adj. 铜制的;
vt. 镀铜;
n. 染色剂；污点（stain的复数）
🗣️ 情景例句
Hello.
你好。
You (or One) cannot make a silk purse out of a sow's ear.
粗瓷碗雕不出细花来。
He noticed at once that discipline was slack: the Danes had the self-confidence of conquerors, and their security precautions were casual.
他马上发现丹麦军纪律松弛，他们以征服者自居，安全措施马马虎虎。