Sec-propyl
[化] 异丙基
🧩 词语组成解析
SEC
[[sek]]
[计] 秒, 辅助\\n[化] 尺寸排阻色谱法
n. 丙基\\n[医] 丙基
🗣️ 情景例句
the bank needs to be sure
银行需要确定
Which one do you want to buy?
你买哪一个？
'He had travelled only seven miles across the Channel when his engine failed and he was forced to land on sea.
但他只在海峡上空飞行7英里，引擎就发生了故障，他只好降落在海面上。