Focometer
n. 焦距计\\n[化] 焦距计
🗣️ 情景例句
It's Grandma's recipe.
这是奶奶的配方。
Elbow grease gives the best polish.
只要功夫深，铁杵磨成针。
the varieties are infinite; but two classes may be roughly seen.
鸟的飞行方式千差万别，但大体上可分为两类。