adj.骇人听闻的，令人震惊的,可怕的
They have been living under the most appalling conditions for two months.
他们已经在恶劣不堪的条件下生活两个月了。
The prospect of waiting around just twiddling his thumbs was appalling.
想到将要无所事事，他就非常害怕。
Helicopters fly in appalling weather to succour shipwrecked mariners.
直升机在恶劣的天气条件下起飞前去援救遇难的船员。