农民抱怨说，他们无法养猪了——母猪下仔越来越少，而且小猪只能存活几天。
The farmers complained that they were unable to raise any pigs — the litters were small and the young survived only a few days.
在公众渴望自由的背景下，我们这些拿着长焦镜头、装扮酷似好莱坞狗仔队的人，自然会遭到安全人员跟踪。
And the public's desire for freedom, of course, is why security agents were hunting us, snapping pictures with telephoto lenses fit for Hollywood paparazzi.
母熊通常在冬眠期间产下胡桃大小的幼仔，哺乳几个月，小熊们渐渐长大，当春天来临大地解冻时，母熊从冬眠中醒来，离开巢穴。
She-bears normally give birth to tiny walnut-sized cubs during their winter hibernation and suckle them for months as they grow, before the spring thaw awakens the mother and she leaves her den.
在一项新研究中，研究者用健康的母鼠抚育压力大的母鼠产下的幼仔，发现表观遗传变化只能部分修复。
In the new study, researchers also had healthy mothers raise the offspring of stressed mothers, and found that the problems were only partially fixed.
两只熊猫都租借到英国，租期为10年。据悉，它们在此期间产下的幼仔将在出生后不久送回中国。
Both pandas are being lent to Britain for 10 years, although it is expected that any offspring they produce during that period will be returned to China shortly after birth.
这一窝产下两只雄仔和七只雌仔。
因此，在该试验条件下，真鲷仔稚鱼微粒饲料中卵磷脂的最适添加量应为5.0％左右。
Hence, under the experimental conditions, the optimal added amount of lecithin in microdiet for red sea bream larvae was about 5.0%. 4.
在挪威和北极之间的半途上有的一群岛屿，称为斯瓦尔·巴特群岛。在冬季微弱阳光的照耀下，岛上的雄性北极熊仔在对打。
Young male polar bears SPAR under the low light of winter in Svalbard, a cluster of islands halfway between Norway and the North Pole.
在挪威和北极之间的半途上有的一群岛屿，称为斯瓦尔·巴特群岛。在冬季微弱阳光的照耀下，岛上的雄性北极熊仔在对打。
Young male polar bears SPAR under the low light of winter in Svalbard, a cluster of islands halfway between Norway and the North Pole.
应用推荐