Diaphragming
阻隔, 調光圈(照相)
??? 情景例句
How does she get by on such a small salary?
她靠那么一點薪水怎么過生活？
He seems very serious, but in fact he has a delightful sense of humor.
他看上去很嚴肅，其實很詼諧。
Glad to meet you. What's your name, please?
很高興認識你。請問你叫什么名字？