是…还是;

It is debatable whether or not antibiotics would make any difference.
抗生素能否起到什么作用还无法定论。
来源:《柯林斯高阶英汉双解学习词典》Whether or not it then gets the carrot depends on the whim of the mule driver.
那时候它是否吃得到这串萝卜,得看驴夫的高兴.
来源:汉英文学 - 围城Not all women have the choice whether or not to breast-feed their babies.
不是所有的妇女都能选择是否用母乳哺育自己的孩子。
来源:《柯林斯高阶英汉双解学习词典》They will consider whether or not he has been guilty of serious professional misconduct.
他们将考虑他是否犯有玩忽职守的重大过失。
来源:《柯林斯高阶英汉双解学习词典》这类作品, 不论当初是否打算出版,都是新英格兰文学的珍品.
来源:词典精选例句Circa 1979, your program was judged heavily on whether or not it was menu-based.
大约在1979年, 对程序的评价在很大程度上取决于是否提供菜单.
来源:About Face 3交互设计精髓The amount will be paid to everyone regardless of whether they have children or not.
不管有没有孩子,每个人都会得到相同的金额。
来源:《牛津高阶英汉双解词典》However, momentum is always conserved in a collision, whether or not the collision is elastic.
然而, 不管碰撞是不是弹性的, 在碰撞过程中动量总是守恒的.
来源:词典精选例句I wasn't sure whether to laugh or to reciprocate with a remark of my own.
我不知道是该笑一笑还是该说点什么作为回应。
来源:《牛津高阶英汉双解词典》A number of factors decide whether a movie will be successful or not.
一部电影成功与否是由许多因素决定的。
来源:《牛津高阶英汉双解词典》You examine a patient and then you decide whether or not to operate.
先为病人作检查,然后再决定是否做手术。
来源:《柯林斯高阶英汉双解学习词典》It was squarely up to me to decide whether or not the procurement of an armistice.
是否赢取停战协定之决定,完全落在我一人身上.
来源:词典精选例句
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