人们一般认为,从空中向蝗群撒药很困难并且很危险,因此只能采取地面防治措施。
People usually assume that it is difficult and very dangerous to spray locust swarms from the air and that control measures can only be exercised on the ground.
只是在几十年前认识了其生物性,有了化学杀虫剂和空中撒药之后,人们才开始努力控制这种虫害。
Only when its biology was understood and chemical pesticides and aerial spraying became available a few decades ago, could efforts be made to control the insect.
撒点辣椒粉到您的鸡汤里面可以提高传统感冒药的疗效,因为辣椒可收缩鼻腔和喉咙血管来缓解充血。
Sprinkle some onto your chicken soup to turbocharge that traditional cold remedy, since cayenne shrinks blood vessels in your nose and throat, relieving congestion.
之后,索撒尔出现了发热、头痛、下背痛、胸口发闷、以及血压升高等症状。医生据此做出诊断,他是被一种叫做伊鲁坎吉的水母所蜇。索撒尔服用了止痛药,睡了一夜,中毒反应才消失。
Progressive symptoms of fever, headache, lower back pain, chest tightness and high blood pressure led the doctor to diagnose that Southall had been stung by an Irukandji jellyfish.
之后,索撒尔出现了发热、头痛、下背痛、胸口发闷、以及血压升高等症状。医生据此做出诊断,他是被一种叫做伊鲁坎吉的水母所蜇。索撒尔服用了止痛药,睡了一夜,中毒反应才消失。
Progressive symptoms of fever, headache, lower back pain, chest tightness and high blood pressure led the doctor to diagnose that Southall had been stung by an Irukandji jellyfish.
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