「信封」

(pos:名詞)
<explanation>
yue:包住封#信 嘅紙；裝信嘅紙封（量詞：個）
eng:envelope
<eg>
yue:佢將封信放返入信封。 (keoi5 zoeng1 fung1 seon3 fong3 faan1 jap6 seon3 fung1.)
eng:She put the letter back into the envelope.