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- Sheds only once a year during a 4 week time period. 掉毛时间为一次一年,但是时间长达4周。
- But Christmas comes only once a year. 可惜每年只有一次啊!
- Female pandas ovulate only once a year, in the spring. 一年雌熊猫仅仅在春天排卵。
- Thoroughly clean the entire house,often done only once a year. 彻底地打扫房屋，经常是每年一次。
- Only once a year, the couple could meet on the Milky Way. 牛郎与织女一年才能在鹊桥上相会一次。
- Viticulture : Short pruning (double guyot); weeding only once a year, hand-picking with double sorting. 种植方式:单臂篱架，短梢修剪;隔行留草，手工精选采收
- C) The holiday is coming to an end, this is a holiday nostalgia, because only once a year! 三)假期快结束了,很留恋这一个假期,因为一年才有一次嘛!
- Mail comes to this remote village only once a week. 邮车每周只到这个偏僻的村庄一次。
- Comprehensive Games only once a year, and in the course of each project are for college or grade units. 综合类运动会每年只有一次,而且每个项目开展过程中均以学院或年级为单位。
- Going a step further, Katz suggests thinking about your investments only once a quarter or once a year. 另外，凯兹也建议大家只需要一季度或一年考虑一次投资就够了。
- Mature Christmas Island red crabs probably moult only once a year, as their growth rate slows. 成年圣诞岛红蟹或许一年只蜕一次壳，因为它们生长缓慢。
- They get together once a year at Christmas time. 他们每年圣诞节时聚会一次。
- Which is better, a clock that is right only once a year, or a clock that is right twice every day? "The latter," you reply, "unquestionably." Very good, now attend. 两只手表哪一只表更好?一只表一年只准时一次的还是每天准时两次的?“后一个,”你回答,“毫无疑问的!”回答很好,但请留神。
- Once a year a race is held for old cars. 每年举行一次旧式小汽车比赛。
- The holidays can be stressful, no doubt about it: the crowds, the hassles, the cold weather, those annoying relatives you thankfully see only once a year. 假期可能会感到紧迫、毫无疑问：拥挤、争吵、寒冷，还有那些多亏一年只见一次面的烦人亲戚们。
- The farmers here sow once a year. 这里的农民一年播一次种子。
- We resolved to visit Europe at least once a year. 我们决定至少每年访问欧洲一次。
- Even if this person can come only once a year, he or she can add much depth to the study, making suggestions about study materials, answering perplexing questions on content and so forth. 即使这个导师一年只能来一次，他或她也可帮你加深学习、提出学习材料方面的建议，回答一些令人困惑的问题等等。
- I go to the barber's only once a month. 我一个月上理发店一次。
- It' s only a day' s sailing from here to Shanghai. 从这里去上海只有一天的航程。0?
