adj.无人陪伴的;无人出席的;无人照顾的;未被注意的;
例句:
An unattended bag or parcel was cause for immediate evacuation.
一发现无人认领的包裹便会让人群立即疏散.
When leaving the working place or when the working place is unattended.
工作场所无人了或离开工作场所时.
She proposed to expose herself, unattended, to the crowd's appreciation.
她预备独自一人暴露在他们众目睽睽之下.