scorching:灼热的激烈的 frosty:结霜的,严寒的冷淡的 swings:摇摆,改变 clinical trials:临床试验
chill:打冷颤寒冷,冷漠扫兴
lurk:潜伏,埋伏 conserve:保存保护
immunity:免疫力,豁免权 diminish:减小缩小 ward off:避开,挡住
amplify:扩大增强
steamy:蒸汽的,潮湿的 acclimate:适应使服水土