Correspondence: Learning vocabulary for letter writing: writing paper , ink , envelopes.
Correspondence: Learning vocabulary for letter writing: writing paper , ink , envelopes.
学习与写信有关的词汇，如信纸、墨水和信封等。
Correspondence: Learning vocabulary for letter writing: writing paper , ink , envelopes.
学习与写信有关的词汇，如信纸、墨水和信封等。