in difficulty造句

1、In difficulty of learning, music lies somewhere in between speaking and writing.
从学习难度上看，音乐在说话和写作的中间地带。

2、When I am in difficulty he kindly comes to my assistance
我遇到困难时,他好心地来帮助我

3、The task varied in difficulty according to the pitch of the second tone.
这项任务的难度随着第二个音调的高低而变化。

4、One of the station staff saw he was in difficulty and came to his aid.
一位车站工作人员见他有困难，便过来帮忙。

in difficulty翻译