Bipyridine
[醫(yī)] α,α'-雙吡啶
??? 情景例句
Please don't cut it too short.
不要剪得太短了。
People are always changing, aren't they?
人總是在變，不是嗎？
A young man sees a sunset and, unable to understand or to express the emotion that it rouses in him,
一個年輕人看到日落，由于無法理解和表達日落在他心中喚起的激情，