1. The fat man laughed to himself as he unlocked the door of his room and stood aside to let his frustrated guest enter.
    当胖子打开房门，站在一边让他沮丧的客人进屋时，他暗自笑了。

2. Thus Americans are often frustrated by the many successive meetings in many Japanese businesses.
    因此，美国人对许多日本公司繁多的会议感到厌烦。

3. The children who gave in to temptation early on were more likely to be lonely, easily frustrated and inflexible.
    那些经不住诱惑的孩子更容易变得孤独，容易受挫，缺乏灵活性。

4. She grew frustrated and angry.
    她变得又沮丧、又气恼，

5. Ms. Mbogo said she had become frustrated because the donor groups that provide substantial aid to Kenya's rural areas "did not want to come here".
    姆波戈女士说，为肯尼亚乡村地区提供大量捐助的团体"不愿意到这里来"，为此她感到很失望。