Bookmakers no longer needed to break their backs, painstakingly handwriting page after page only to end up with a few completed by day's end.

书籍制作者不再需要伤透脑筋，费尽心思地写下一页又一页，可能一天结束也写不了多少。

When the peregrines reach their target, they  deliver a perfectly controlled blow to their prey, breaking their back or wings, and  carrying them away with their talons.

当游隼到达目标时，它们会对猎物进行完美控制的打击，打断它们的背部或翅膀，然后用爪子将它们带走。