但Drop . io的特别之处在于：当你上传了一个文件，服务会让你为文件设定一个截止日期。

But here's what makes Drop.io unique: When you upload a file, the service asks you to put an expiration date on it.

youdao

但Drop . io的特别之处在于：当你上传了一个文件，服务会让你为文件设定一个截止日期。

But here's what makes Drop.io unique: When you upload a file, the service asks you to put an expiration date on it.

youdao