Although ruthless industrialization and expansion seemed very prosperous, it destructed the human nature.

无情的工业化扩张虽然表面上一片繁荣景象，但却摧残了人类的本性。

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They came to know these animals in a more personal way and developed deep affection for some of them, although the systematic use of creatures under their control could lead to ruthless exploitation.

尽管对动物的系统利用会导致残忍的剥削，人们对某些动物还是有了人性化的了解和强烈的情感。

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And, although the Giants were poor, it was a ruthless attacking display which soon ended any hopes Huddersfield might have had of avenging last August's 25-16 Wembley defeat.

BBC: Huddersfield Giants 4-60 Warrington Wolves

Although charming, Mr Ospel, say many, is a ruthless boss who discards people once they have served his purposes.

ECONOMIST: The travails of UBS