copper
/ˈkɔp.ə/
B1 · Intermediate★★★☆☆
Simple Meaning
一种红棕色金属，用于制作电线和管道。
When to Use
⚙️Technical📰News & Media💬Daily Conversation
Intermediate — can handle common situations
Examples in Conversation
“旧便士是铜制的，但新便士不是。”
“他们用新的铜管替换了旧管道。”
Learning Path
▶Full Definition
A reddish-brown, malleable, ductile metallic element with high electrical and thermal conductivity, symbol Cu, and atomic number 29.