adj. 对…有害的;能造成损害的;不利;不良;
💡 harm伤害+ful形容词后缀 → 有害的, 伤害的
"prolonged exposure to harmful radiation"
长时间接触有害辐射
近义:malevolent, malicious, malign, malignant, baleful, noxious
反义:helpful, auspicious, profitable, propitious, salutary, useful
n. 吸烟,抽烟;
v. 冒烟( smoke的现在分词);抽烟;用烟熏制;吸(烟);
"Smoking is a causative factor in several major diseases."
抽烟是引起几种严重疾病的病因。
近义:nicotinism, aspersion, fumigation, smoggy, smoky, fuming
n. 健康状况;卫生;保健;昌盛,兴旺;
💡 heal(治愈)+th(名缀)治愈后恢复健康。
"He lost his health, and therefore his difficulties increased."
他身体虚弱, 因此更增加了他的困难.
近义:healthiness, liveness, salubrity, salutariness, sanitation, sparkle
反义:unhealthiness, unsanitariness