Frontdoor
[计] 一种信件前导程序
🗣️ 情景例句
What does that mean when he goes,
他发出的声音代表什么意思
Better wear out shoes than sheets.
宁可（经常运动）穿破鞋子，也不（因病长卧）磨破床单。
Let's meet outside the park gate.
咱们在公园的大门外碰头吧。