用do sth.by doing sth造句 math physics chemist

用do sth.by doing sth造句 math physics chemist 用 do sth by doing sth和do sth by mistake 造句 by doing sth造句 用“do sth by doing”（通过.做某事）造句 用Do sth,Do not do sth,No doing sth造句(各5个) 用 I do sth by myself 造句 do sth by mistake造句 by to do sth=by doing sth吗 用 forgive sb for sth / doing sth 造句 be+adj+enough+to do sth make it possible by doing sth造句 what do you mean by doing sth? 用practice doing sth.造句