Biodiesel
生物柴油
🗣️ 情景例句
I'm really excited about seeing Grandpa.
一想到要见到爷爷， 我就觉得兴奋。
Just wait and see.
你等着看好了。
'Well, I'd prefer to stay here,' I said.
“可我更愿意呆在这儿，”我说，