Columbium
n. [化]铌
🗣️ 情景例句
You tried, Mom.
尽力了， 妈妈。
Medicines are not meant to live on.
不能靠药物度日子。
But when the train dawdled at station after station, I began to wonder,
但是，当火车一站接着一站往前蠕动时，我便产生了怀疑。