动词短语
中文翻译：变坚强
同义词：
['be tougher', 'toughen']
例句：
-
1. She's toughenedup over the years and is now astrong leader.
她经过多年的锻炼，现在是一个坚强的领导者。
-
2. The company has toughenedup its operations to cope with the economicdownturn.
该公司已加强其运营以应对经济衰退。
-
3. He toughened up his attitudetowards difficult tasks.
他对困难任务的态度变得更加坚定。