a plug machine
插拔机
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The only cog in the machine would be that eventually HelloSign would need to get a plug-in for users of various other email accounts including Yahoo and Hotmail among others.
FORBES: Signed, Sealed, Delivered: How HelloSign Is Changing Electronic Document Signatures
应用推荐
模块上移
模块下移
不移动