The machine once ran for ten days unattended over a Christmas and New Year holiday period.

而HARWELL计算机则完全没有这方面的问题，记得有一次这台机器连续自动运算了10天之久，从圣诞节一直算到新年假期结束为止。

youdao

We recommend that you switch off the power supply when leaving electronic equipment unattended for a longer period.

如果电子设备长期处于无人照管的状态下，我们建议把电源关闭。

youdao

Cash drawers must never be left unattended, even for a short period of time, unless it is locked first.

随时保持注意现金抽屉，人不在时，一定要上锁。

youdao

Disable your vehicle when leaving it unattended for an extended period.

FORBES: New Cars With The Highest Theft Rates