Xanthochromium
黄铬基团
🗣️ 情景例句
I miss them.
我想念他们.
Little pigeons can carry great messages.
少年也可以成大事。
While two detectives were keeping guard at the door, two others opened the parcel.
这时两个侦探把住门口，另外两个侦探打开了包裹。