Copper-bottomed
a. （船）底包铜皮的
📖 牛津释义
copper-bottomed
adj (esp Brit) safe in every way; certain not to fail 绝对安全的; 万无一失的
a copper-bottomed guarantee, assurance, deal, etc 可靠的保证、 绝对的把握、 毫无风险的交易.
🧩 词语组成解析
copper
['kɑpɚ]
n. 铜;铜币;紫铜色;警察;
adj. 铜制的;
vt. 镀铜;
...底的, 底是...的
🗣️ 情景例句
I'm afraid I didn't get on very well in the exam.
我这次考试恐怕不太顺利。
After death, the doctor.
放马后炮。
It was half past four. Everything was ready.
一切都准备好。