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1·Fire crews have been operating at full stretch.

各消防队一直在全力以赴。《牛津词典》

2·The factory was at full stretch.

工厂在全力生产。

3·The house's ability to rotate is thus limited only by the length of the hoses at full stretch.

因此，屋子充分伸展旋转的能力只被软管长度所限制。

4·Outside looks at the hope to ascend the sky the day, walks the under foot vast stretch of flat land, is facing the full house descendant, finished in the heart to wish.

望望头上天外天，走走脚下一马平川，面对着满堂儿儿孙，了却了心中祈愿。