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- To maintain a secure grasp. 抓牢，紧握保持紧握
- It was difficult to maintain a secure foothold on the ice. 在冰上不容易站稳脚。
- To maintain a grasp or grip on something. 握住,抓住:维持抓住或握住某物。
- Japan today simply stands too tall and too rich to maintain a low profile. 日本现在太醒目，太富裕了，很难再不引人注意了。
- To maintain a secure position. 保持安稳地位
- She tried to maintain a businesslike look. 她想要保持一种有条不紊的样子。
- It's very hard to maintain a relationship. 要维持一段关系,是很困难的。
- You earning enough to maintain a family in comfort? 你挣的钱足以维持一家人过舒适的生活吗?
- She tried to maintain a low profile. 她努力保持低姿态。
- I try to maintain a robust sense of humor. 我尽量保持十足的幽默感。
- Day to maintain a high index small shocks. 全天股指维持高位小幅震荡。
- My business has been through a bad patch recently and I have been unable to maintain a reasonable profit margin. 最近我的买卖经历了一段不景气的时光，我已不能保持适当的利润率。
- Do you and your partner intend to maintain a lasting relationship? 两人准备维持持久的关系吗?
- Backwashing is one of the methods to maintain a filter bed clean. 反冲洗是保持滤床清洁的方法之一。
- Maintain a secure DB server using standard and advanced techniques. 用规范的和先进的技术来安全地维护数据库服务器。
- To maintain a proper interdentium is of great importance. 结论 除上颌第1磨牙外，全口恒牙均可发生阻生，保留牙间隙是十分重要的。
- Burglar must firmly grasp the knowledge necessary to maintain a certain of vigilance. 防盗知识也要牢牢掌握，要保持一定的警惕性。”
- The team managed to maintain a firm face even in times of great adversity. 即使在危难时刻，这个队仍成功地保持了坚定的信心
- To place or conceal in a secure place. 隐藏放置或隐藏在安全的地方
- There is no need to maintain a strict alphabetical sequence. 不必保持严格的字顺。
