翻译API接口，包括谷歌、腾讯、有道、百度等机器翻译接口
1.Google
API = https://translate.google.cn/?hl=zh-CN&tab=TT#view=home&op=translate&sl=en&tl=zh-CN&text=
2.有道智云
http://ai.youdao.com/docs/doc-trans-api.s#p04
3.微软bing翻译
https://docs.microsoft.com/en-us/azure/cognitive-services/translator/quickstart-python-translate
4.腾讯api：
https://cloud.tencent.com/document/api/551/15619
5.百度api
http://api.fanyi.baidu.com/api/trans/product/apidoc
6.阿里云
https://help.aliyun.com/document_detail/108551.html
7.彩云小译
https://fanyi.caiyunapp.com/#/api
8.译云
9.华为云
https://www.huaweicloud.com/product/mts.html
10.Webxml
http://www.webxml.com.cn/zh_cn/index.aspx
api ref:
https://zhuanlan.zhihu.com/p/21320392?refer=passer
google post:https://cnodejs.org/topic/58c94ea659017af119c1d31b
web translate:https://github.com/yixianle/google-translate