the mother must work tirelessly to raise her family. 母狐狸必须拼命觅食才能养活全家

122. Some is needed right now.
     有些马上就要吃
123. She has seven hungry cubs to feed.
     这只母狐狸有七只饥饿的小狐狸要喂养
124. As their appetites grow,
     随着小狐狸胃口不断增加
125. the mother must work tirelessly to raise her family.
     母狐狸必须拼命觅食才能养活全家
126. 0nly fat, healthy cubs will survive the Arctic winter.
     同时只有健康、饱满的小狐狸 才能捱过北极的寒冬
127. The vast majority of the goslings are still flourishing.
     成千上万的小雪雁还在茁壮成长
128. Their parents lead them down to the safety of the water as soon as they're strong enough to make the journey.
     它们强壮得可以旅行时, 父母马上就带着它们来到更为安全的水域

来自《行星地球 第一季 第七集 Planet Earth S01E07 伟大草原》第 125 行