the fugitive was still at large.

逃犯仍在逃。

there has been a loss of community values in society at large.

公众的价值观念就社会整体而言有一定的下降。

he served as an ambassador at large in the Reagan Administration.

他在里根政府里当过无任所大使。

writing at large on the policies he wished to pursue.

就他所希望奉行的政策作详尽的著述。