花叶病是分布最广泛的甘蔗病害之一.Mosaic is one of the most widely distributed sugarcane diseases.病毒病常分为几大类,即花叶病, 黄化病, 斑驳或条斑.Viruses are often classified into broad categories as mosaics , yellows, mottles, and streaks.玉米矮花叶病是世界普遍发生危害严重的...
Mr. Sebastian was looking at the boys with a bemused expression.塞巴斯蒂安先生一脸茫然地看着男孩儿们。He was rather bemused by children...他为孩子们大伤脑筋。He was rather bemused by children.他为孩子们大伤脑筋。They all sat still, all bemused by the beauty o...
在街上看见有人饿晕是很平常的事。It's commonplace to see people collapsing from hunger in the streets.她昨天一整天都在街上四处奔走，搜集证据。She spent all day yesterday tramping the streets, gathering evidence.小型出租车禁止在街上兜揽生意。Minicabs are not allowed t...