late 14c., "ill, invalid, habitually ailing," from sick (adj.) + -ly (1). Meaning "causing sickness" in any sense is from c. 1600. Related: Sickliness.
权威例句
1. Wallpapers for children too often come only in sickly pastel shades.
给孩子们用的墙纸往往颜色苍白暗淡。
2. He was a sickly child.
他是个爱闹病的孩子。
3. He had a sickly green pallor.
他脸色青白,带有病容.
4. It gave off a sickly, oily smell, as of Chinese ricespirit.
这酒一股子油味儿, 直叫人恶心,活像中国的黄酒.
5. He climbed into the conning tower, his eyes haunted and sickly bright.