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- She was humming a tune to herself. 她自个儿哼著小调。
- She was humming to herself. 她独自哼着歌。
- She was humming (away) to herself. 她在低声哼唱.
- She was humming softly to herself. 她在轻声哼着曲子。
- She was humming a song to herself. 她独自哼着歌。
- The young girl was humming to herself. 那年轻女孩独自哼着小调。
- He was humming a song to herself . 他自己在哼唱着一支歌。
- He was humming to himself as he drove. 他一边开车，一边哼着歌。
- She was left to herself to brood and wonder. 她只有独自一个在那里沉思和惊讶。
- She walked about listlessly, humming to herself in dejection. 她没精打采地走来走去，沮丧地低声哼着。
- She was always calling attention to herself. 她总是引人注意她。
- She was muttering to herself in low tones. 她在低声自言自语。
- When my mother came out, she looked very happy. She was humming. 我妈妈出来时很开心还哼着歌呢。
- No sleep returned until the two fell quiet, she humming to herself while the little frog snored contentedly. 她自吟自唱，而小青蛙心满意足地打鼾。
- She was interested, she was, as she said to herself, floated. 她兴致勃勃，正如她对自己说的，她的心静不下来。
- She was chucking to herself over the humorous story that she was reading. 她对所读到的幽默故事感到有趣，因而“咯咯地笑”起来。
- In the firelight, Fernando, you were humming to yourself and softly strumming your guitar. 在炉火的火光里，费尔南多，你是如此深情地哼唱着自己的歌曲，温柔的弹着你的吉他。
- Sarah was muttering away to herself as she did the washing-up. 萨拉一边洗碗碟一边独自咕哝个没完。
- The hall was humming with the sad music. 大厅里充满了低沉的令人伤感的乐声。
- Liechtenstein hummed to herself as she walked through the dark forest until she smelled a strong scent of something. 小列支一边哼着歌一边往森林深处走去，忽然她闻到了一种很刺鼻的味道。
