The delimitation of stands within ecotons generally gives on difficulties.在群落交错区范围内,通常划定群落片段的边界并不太困难.The matter of delimitation needs the two countries to negotiate. It can't be decided unilaterally.划界的事还需两国商量, 并不是任...
"Whoa, I'm goin" to Barbay-dos!' ran the jaunty lyrics of a 1970s hit song.“喔，我要去巴巴多斯!”一首20世纪70年代流行歌曲这样欢快地唱道。" There was two cars,'said Michaelis, " one comin ', one goin ', see? "“ 当时有两辆车子, ” 米切...
An alternative approach to alcohols having two identical R groups ( q ) is to disconnect both at once.另一可供选用的,通向具有两个等同R基 的醇 ( q ) 的办法是,将这两个R基一举全都切开.If you don't pay your bills they'll disconnect your electricit...
The uniform imparts a dignified appearance to him.这身制服使他显得威严.She was small and fragile and looked incongruous in an army uniform.她又小又弱，穿一身军装看起来很不协调。British schoolboys sometimes wear caps, ie as part of their school unifo...