Semi-closed guard protection, safe and reliable.

半封闭防护，安全可靠。

youdao

The guard went round making sure that all the Windows were closed.

保安巡视了一遍，确保所有的窗户都已关闭。

youdao

The guard went round making sure that all the Windows were closed.

保安巡视了一遍，确保所有的窗户都已关闭。

youdao