Egg parasitoids of the genus Trichogramma are widely used in biological control against Lepidopterous pests.赤眼蜂属是生物防治中广泛用来防治鳞翅目害虫的一类重要天敌昆虫.Maria spent the weekend eradicating pests from her garden.玛莉亚整个周末都在花园除虫.Several k...
And on your left, you have Tyrannosaurus Rex, a carnivore from the Jurassic period.在您的左边, 您看到的是暴龙, 一种来自侏罗纪的肉食动物.Tyrannosaurus Rex was a large carnivore; insectivorous plants are considered carnivores.暴龙是一种大型的食肉动物; 食虫植物被看...
All this, needless to say, had been culled second-hand from radio reports.不用说，所有这些都是从电台报道中采集来的二手材料。"I have never knowingly exposed any patient to needless risks," he said.他说：“我从未故意将任何病人置于不必要的风险境地。”Needless to say, theory...
Regrettably we have to house families in these inadequate flats.很遗憾，我们不得不让住户挤在这些狭小的公寓里。It started a fire in a block of flats.大火是从一幢公寓大楼烧起的。His mother looked ten years younger in jeans and flats.他妈妈穿上牛仔裤和平跟鞋，看上去年轻了10岁。...