由于幼虫对药物有免疫力，因此必须经常喷药。Because of the immunity of the immature insects, it'simportant to spray regularly.成人往往对风疹有免疫力。Adults are often immune to German measles.新来的人对这一疾病在当地的几种类型缺乏免疫力.The newcomers lacked immunity again...
事件过后这么多年方获知当时的内情，这实在是令人慨叹。It's fascinating to get the inside story so many years after this incident.说时摇头慨叹.As he spoke he shook his head and sighed sadly.两人慨叹不幸身为青年未婚留学生的麻烦.They both bewailed their misfortune at be...
新娘子的脸被薄纱遮护着,有一种蒙胧美.The sky is covered with clouds. It is probably going to rain.宽帽遮护她的眼睛以防日射.Her wide hat shielded her eyes from the sun.包括溶剂型和乳液型防锈剂, 可提供不同期限的室内和有遮护的室外保护.A range of solvent based and emulsion type rust p...