在花粉形成过程中,花药内天然产生一种化合物.During pollen formation a compound is produced naturally in the anther.将花药筛到无光的 、 具渗透性的纸上, 如报纸或卫生纸, 以便花药干燥.Sift the anthers onto unglazed, permeable paper, such as newspaper or paper toweling, for d...
贝内迪克特小时候野性难驯，年轻时又爱与人争吵。Benedict had been a wild boy and a quarrelsome young man.他们在兰伯恩总共驯了五十多匹马。Between them, they train over fifty horses in Lambourn.他远不是一般意义上的驯狗师。He was in no way representative of dog-trainers in gene...