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- Do not overheat cylinders to increase pressure or discharge rate. NEVER insert an object (e.g., wrench, screwdriver, pry bar, etc.) into valve cap openings. 禁止使钢瓶过热来增加压力或流速。禁止把物体（如扳手、螺丝起子、撬杆等）插入阀门帽地开口处。
- Who is the boy in the official school cap? 那个戴校帽的男孩是谁？
- His book was an eye opener to complacent young men. 对自满的年轻人来说，他的这本书有启发作用。
- The cap should twist off easily. 这个帽儿应该容易拧开。
- Pea pods burst open when overripe. 豌豆过熟就会爆裂。
- Open tender for purchasing power transformer. 公开招标购买电力运输设备。
- Winning the medal was a feather in his cap. 获得奖章是他的荣誉。
- We bivouacked on the open plain. 我们在开阔的原野上露营。
- He wore a cap with tabs over the ears. 他带一顶有护耳的帽子。
- Put the cap back on the toothpaste. 把盖子重新拧在牙膏管上。
- Thank you. How long will this offer be open? 谢谢。这个报价的有效期多长？
- Open the shutter and see what the weather is like. 打开百叶窗，看看外面的天气如何。
- In lieu of carrying an umbrella, I wore a waterproof coat and cap. 我穿一件雨衣，戴一顶雨帽，就不用带雨伞了。
- The fresh air blew in from the open window. 新鲜空气从开着的窗户吹进来。
- Can you open the bottle with the opener? 你能用启子将瓶子打开吗？
- The shop is open from this day onwards. 该店从今天起开始营业。
- Before I can give them an answer I'll have to put my thinking cap. 在我回答他们之前，我必须好好地思索一下。
- Please open a window to allow the air to circulate. 打开窗子让空气流通。
- This drawer is too tight for me to open it. 这抽屉太紧了，我打不开。
- You may open a current account at a bank. 你可以在银行开立一个活期帐户。
