Reduced vigor or " inbreeding depression " is not an invariable consequence of inbreeding.降低生活力或 “ 近亲繁殖的衰退 ” 并不是近亲繁殖必然的后果.This process, however, was not invariable.但是, 这个过程并非始终不变.an invariable rule不变的规则It was his invaria...
苏联入侵另一半的疆土,亚美尼亚人直至一九九一年才获独立.The Soviet Union invaded and Armenia did not regain independence until 1991.这个疆土辽阔、根基脆弱的帝国看起来的确是摇摇欲坠了.This vast and ill - founded empire seems indeed nodding to its fall.疆土边境不能阻止变革.Change cann...