Norepinephrine
n. 去甲肾上腺素\\n[化] 去甲肾上腺素
🗣️ 情景例句
When you see something, think of the English word for it.
当你看到一个东西时，就想到它的英文单词。
Time past never returns, amoment lost, lost for ever.
过去的时间决不返回，浪费一点，永远消失。
They cut big pieces of metal into small pieces.
它们把大块的金属切成小块。