i am writing to do sth

意思翻译 我写信是为了做某事 相似词语短语 i am writing───我正在写作（writing是write的现在分词形式）；我正在写字（writing是write的现在分词形式） to do sth───做某事 do sth───做某事 trying to do sth───尽量去做某事 seem to do sth───似乎要做某事 pledged to do sth───保证做某事 refused to do sth───拒绝做某事 used to do...