Bipropargyl
联丙炔
🗣️ 情景例句
Why, I didn't know that your grandfather was born in Germany.
你看 我竟然不知道您的爷爷出生在德国。
I'd like to try on this sweater.
我想试穿这件毛衣。
My teacher's gifted instruction lived on after her death.
我的教师逝世后，她宝贵的教诲仍继续长存。