a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust
the 15th letter of the Roman alphabet
the blood group whose red cells carry neither the A nor B antigens;
"people with type O blood are universal donors"
双语例句
1. He signed up as a steward with P&O Lines.
他签约了P&O航运公司，成为了一名乘务员。
来自柯林斯例句
2. "O.O.B.E." is short for "Out Of Body Experience".
O.O.B.E.是OutOfBodyExperience（身外体验）的缩略形式。
来自柯林斯例句
3. I can't make out whether this letter is an e or an o.
我认不出这个字母究竟是e还是o.
来自《简明英汉词典》
4. It was just gone 7 o'clock this evening when I finished.
今晚我做完的时候刚过7点。
来自柯林斯例句
5. "Is Mary Ann O.K?" — "She's fine," she said evenly.
“玛丽·安还好么？”——“她很好，”她平静地说。
来自柯林斯例句
用作感叹词 (int.)
He didn't know that was Bical O's conspiracy. 完全不知到这是邪恶二齿猪的阴谋啊！
More flowers will come to you with perfume and pride,O world! 啊，世界，更多的花涌到你的怀里，带着芬芳，带着骄傲！
