Diaphragming
阻隔, 调光圈(照相)
🗣️ 情景例句
parents are invited to attend--
家长被邀请来参加
Every time the sheep bleats it loses a mouthful.
羊每叫一次，就少吃一口。
I like light green, but Lily prefers dark blue.
我喜欢淡绿色，而莉莉却更爱深蓝色。