She hatched chicks with either strong or weak lateralisation, then presented the two groups with food hidden among small pebbles and the threatening shape of a fake predator flying overhead.

她孵化出了具有强侧向或弱侧向的雏鸡，然后为这两组小鸡准备了隐藏在小鹅卵石中的食物，还制造出假的掠食者飞过头顶的威胁形状。

youdao

Meanwhile, the needs of the environment are advocated by newer groups, which are both scattered and weak.

同时，环保需求提倡更新的、分散且柔和的组织。

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To realize comprehensive transition of social salvation system is the urgent demand for ultimately decreasing and solving problems concerning weak social groups.

实现社会救助制度的全面转型，是全面缓解与根本解决社会弱势群体问题的迫切需要。

youdao

Though the party system is weak in Afghanistan and few senior leaders attended the joint news conference Wednesday, representatives of many groups that issued the statement hold high-level positions in the Afghan government, military and law-enforcement agencies.

WSJ: Karzai Provokes Pushback at Home