feltn.毛毡；毡制品vt.制毡；使粘结vi.毡合动词feel的过去式和过去分词.feltedv.把 ... 制成毡(使 ... 粘结)adj.毡制的(粘结起来的)

1. I feel cheap not being able to return their invitation.
   我为自己没能及时回请感到难为情。
2. I felt cheap because I'd lied to my friend.
   我对朋友说了谎话，感到很惭愧。