用法:
1 sweet but with a bitter taste at the end 甜中带苦的.

用法:
2 (fig 比喻) pleasant but with a hint of sadness 欢乐中带有一丝忧伤:
bitter-sweet experiences/memories 苦乐交织的经历[回忆].

• flyleaf
• flyover
• fly-paper 1
• fly-past 1
• flysheet
• fly-spray 1
• flyweight 1
• flywheel
• FM
• fm
• FO
• foal 1
• foam 1
• foamy
• fob 1
• focal
• focal length (also focal distance)
• focal point
• focsle
• focus 1
• fodder
• foe
• foetal (US fetal)
• foetus (US fetus)
• fog 1