有时候我们想查到的生词不知道怎

Hi thank you for your question.  We are currently working on a feature right now, which will allow image recognition. It will be first available to users on our website, then we will try it out on our off-line dictionary apps. Hope this answer is helpful.
Lisa

I use the 简体手写 keyboard. On iPhone you can install via Settings > General > Keyboards. Something similar is possible on android. 

我用手机上的简体手写“键盘”选择。