Allf
abbr. additional low layer functions 附加低层功能
🗣️ 情景例句
As a matter of fact,
事实上，
I ate vegetable soup for lunch yesterday.
我昨天晚饭吃的是蔬菜汤。
or through hiring it, the total expense can be far less than the cost of hotels.
总费用算起来要比住旅馆开支少得多。