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- I must be lacking energy. 我也许缺乏精力.
- I must be at Hudson before I break my fast. 吃早饭之前，我肯定已到哈得逊区。
- I've forgotten your name again I must be slipping. 我又把你的名字给忘了--我肯定是不行了。
- I must be the happiest woman on earth! 我一定是世界上最幸福的女人了。
- Well, I must be trotting off home. 嗯，我得回家去了。
- I get tired easily. I must be out of shape. 我很容易疲倦,一定是身体有毛病。
- My wife is expecting me at home. I must be off now. So long! 我妻子正在家等着我呢。我必须要走了。再见！
- I can't do the crossword today I must be losing my touch. 我今天填不出这纵横字谜了－－一定是本事不济了。
- I can't in all honesty (ie if I must be honest) deny it. 我确实不能否认这一点。
- I must be in his black books because he keeps deliberately avoiding me. 我一定不讨他的喜欢，因为他总是故意避开我。
- I must be off. Thank you for your help. 我得走了。谢谢你的帮助。
- Eyes I realize it's fantasize I must be high. 眼睛，我了解，这是幻想。我一定要站的高。
- I must be off now. thank you and see you tomorrow. 我得走了，谢谢你，明天见。
- My wife is expecting me at home. I must be off now. 我妻子在家等我，我得告辞了。
- "I must be frightfully cruel," she muttered. “我一定冷酷得可怕。”她嘟囔道。
- I must not falter. I must be strong. 我不能失败，我必须强大。
- A society where conformity is the norm must be lacking in creativity and vitality. 把一致性作为标准的社会肯定缺乏创造力和活力。
- As a matter of fact,I must be leaving now. 事实上我现在就必须离开了。
- However, now I must train.I redid the preparation, but I am lacking speed and this will take another couple of weeks. 我准备充分，但是现在我速度还不够，这还需要几个星期时间恢复。
- Excuse me,but I must be running along. 对不起，我得赶快走。
