您要查找的是不是：
- Vanadium pent - oxide 五氧化二钒
- My deskmate wanted to trade his pen for my book. 我的同桌想用他的钢笔换我这本书。
- How can you get rid of this oxide coating? 你们该怎样除去这些氧化皮？
- He made motions to me to pass the pen. 他向我打手势，要我把钢笔递给他。
- Put down my pen and stop fiddling! 把我的钢笔放下，别用手玩弄！
- She delved in her bag and pulled out a pen. 她在提包里翻找，拿出一枝钢笔。
- A mixture of black manganese oxide minerals. 硬锰矿一种黑色氧化锰矿的混合物
- Charles bought a pen at the dime store. 查尔斯在廉价店买了一支钢笔。
- Somebody has walked off with my pen. 有人把我的钢笔偷走了。
- A gaseous anesthetic, such as nitrous oxide. 气体麻醉剂一种气态的麻醉剂，如一氧化二氮。
- He is rooting about for his fountain pen. 他正在寻找他的自来水笔。
- I'm wild about losing my gold fountain pen. 我因遗失了自来水金笔而暴躁不安。
- Don't make so much fuss over losing a pen. 别为了丢失一支笔就这样大惊小怪。
- I've searched high and low for my lost pen. 我到处寻找丢失的钢笔。
- I don't like being pent up in the house all the time. 我不喜欢整天给关在屋子里。
- That was only a slip of the pen. 那仅是笔误。
- I can't find my pen though I've looked everywhere. 我到处找那支钢笔,可就是找不到。
- I've hunted high and low for the pen. 我已到处寻找过那枝笔。
- She makes a living with her pen. 她靠写作为生。
- The dog chased the sheep into the pen. 狗追赶羊入栏。
