sicknessn.疾病;呕吐
sicklen.镰刀
sickly plants长势差的植物
sickly climate易致病的气候
sickly structure病态结构
sickly sweetness甜得发腻
sickly sentimentality多愁善感的感伤
"my poor ailing grandmother"
"feeling a bit indisposed today"
"you look a little peaked"
"feeling poorly"
"a sickly child"
"is unwell and can't come to work"