Crossroad do have Chinese speaking volunteer workers. If you do not feel comfortable about your English, you may email to them and ask them to send a Chinese speaking person to communicate with you. The items they collect will be sent to the Third World. I donated a sofa and some clothing items to them some years ago.
You may like to use the following sample for your message to them:
.........................................................................................
Dear Crossroad worker,
I have some furniture items for donation to you. I do not speak much English. It will be helpful if you could send a Chinese-speaking person to get back to me. My phone no is xxxxxx.