Bidesyl
联二苯乙酮基
🗣️ 情景例句
I need some good photos for my advertising, Mr. Stewart.
我做广告需要一些好照片， Stewart先生。
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。
They play it like this, six students stand in a row in front of the class.
6个学生在全班前面站成一排。