one-valued

常见例句

You must set at least one value.
必须至少设置一个值。
Use to subtract one value from another.
用于将一个值减去另一个值。
Here, get two of each value and loop to extract only one value.
这儿,得到两个值中的每一个,并且循环提取一个值。
A subquery in a comparison test must return exactly one value.
比较测试中的子查询必须恰好返回一个值。
Often, you may wish to return more than one value at a go.
通常,您可能希望一次返回多个值。
At least one value in the foreign key column is NULL.
外键列中至少有一个值为NULL。