has difficulty doing sth还是has difficulty to do sth
has difficulty doing sth还是has difficulty to do sth
have difficulty doing sth 为什么不用 to do sth?
have difficulty doing sth
have difficulty doing sth 还是have difficulties do
是have difficulty doing sth还是have difficult doing sth?
是否有have a difficulty doing sth.It's difficult to do sth.It's
have difficulty in doing sth
have difficulty还是difficultyies (in)doing sth?
have some difficulty (in) doing sth.中的 difficulty可数吗
关于have difficulty in doing sth 变形
用have difficulty in doing sth 造句
have difficulties/difficulty in doing sth?