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.The main aim of inbreeding is to standardise, to fix desirable inherited characteristics and to di...
Emergency workers fear that the burning ship could slip its moorings.急救人员担心燃烧着的船只可能会脱链滑走。They escaped through an emergency exit and called the police.他们从紧急出口逃脱，并报了警。The Prime Minister has called an emergency meeting of p...