难以

1. 那次失败是一次难以吞咽的苦果。
   The defeat was a bitter pill to swallow.
2. 约翰感到难以为一家大小置备衣着。
   John felt it hard to rig out his family.
3. 他们难以理解儿子竟放弃了收入颇丰的稳定工作。
   They found it hard to justify their son's giving up a secure well-paid job.
4. 我对这部影片里的任何角色都难以认同。
   I found it hard to identify with any of the characters in the film.
5. 我觉得这难以相信。
   I find that hard to believe.

以的英语翻译：