Standing with feet shoulder-width apart and cradle baby with both arms. Keeping a straight back and repeat deep knee bends.

双脚分开与肩同宽，双臂抱着婴儿。保持背部挺直，重复深膝弯曲。

youdao

Tot squats (hamstrings) : Standing with feet shoulder-width apart cradle baby with both arms. Keeping a straight back repeat deep knee bends.

幼儿蹲坐(腿腱)：两手放在婴儿车上，然后双脚与肩同宽，保持背部挺立，然后重复弯曲膝盖。

youdao

She rocked the baby to sleep in its cradle.

她摇动摇篮哄婴儿入睡。

《牛津词典》

Paul's father built a wooden cradle - a traditional bed for a baby.

VOA: special.2009.01.24

The estate is currently most famous for an incident that occurred in September, when two guard dogs attacked and killed a baby in its cradle.

ECONOMIST: Poor whites

Design-competition proposals for baby cribs as well as coffins made of cork give "cradle to grave" new meaning.

WSJ: Cork's Popping Potential