Zeolite catalyst
[机] 沸石催化剂
🧩 词语组成解析
n. 沸石\\n[化] 沸石
🗣️ 情景例句
How long has he held office?
他已任职多长时间了？
Bread is the staff of life.
民以食为天。
She guided the tourists around the castle.
她引导旅游者参观了这座城堡。