[字辨] have difficutly, have trouble

[ciliu (おもしろくない～)]

have difficulty doing something

have trouble doing something

請問上述這兩句的差異.......

have trouble 是指行動或動作上的困難嗎?
have difficulty 指的是比較抽象面的?
Thanks a lot~~
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◆ From: 220.131.17.126
推 wtt168:http://pewebdic2.cw.idm.fr/ trouble 1 noun 7 health
→ wtt168:http://pewebdic2.cw.idm.fr/ difficulty noun 1
→ ciliu:謝謝您提供的線上字典 ^^