A vacant lot or a bombsite can, to the amateur naturalist, produce an extraordinary variety of flora and fauna.对于业余博物学者来说，在一片空地上或被炸后的废墟里可能发现种类繁多的植物群和动物群。He was a printer by trade and naturalist by avocation.他从事印刷业，同时是个博物...
He was a printer by trade and naturalist by avocation.他从事印刷业，同时是个博物学爱好者。The English naturalist W. H. Hudson was born in Argentina.英国博物学家W. H. 哈得逊出生在阿根廷....the prominent naturalist and broadcaster, Sir David Attenborough....
The dye is reduced by dehydrogenase enzymes released by viable tumour cells.染料被存活的肿瘤细胞放出的脱氢酶所还原.Intracellular PHB depolymerase and 3 hydroxybutyrate dehydrogenase catalyze the initial reactions of intracellular PHB catab...
Blowing your nose too hard can cause earache.擤鼻涕太用力会造成耳痛。He complained of an earache...他主诉有耳痛。The disease can also cause a build up of pressure in the inner ear leading to severe earache.该疾病还会引起内耳的压力增加，从而导致剧烈的耳痛。He compl...