词典释义：
释义
adj.
often ill; in poor health
多病的；体弱的
-
she was a thin, sickly child .她是一个体弱多病的孩子。
(of a person's complexion or expression)indicative of poor health
（人的皮肤或表情）病态的，苍白的
-
his usual sickly pallor .他通常苍白的脸色。
〈诗／文〉 （地方，气候，时间）引起疾病的；有碍健康的
-
a deep sickly vaporous swamp .一个容易致病的、多雾的深沼泽地。
(of a flavour, smell, colour, or light)unpleasant as to induce discomfort or nausea
（味道）令人反胃的；（气味）难闻的；（色彩）恶心的；（光线）令人不适的
-
the walls were painted a sickly green 墙壁刷成了一种令人恶心的绿色
-
she liked her coffee sweet and sickly .她喜欢甜腻的咖啡。
excessively sentimental or mawkish
多愁善感的；假装多情的
-
a sickly fable of delicate young lovers .关系微妙的年轻恋人多愁善感的故事。
词源
"late Middle English： probably suggested by Old Norse
