unset造句怎么写

This is used to set a default value for a variable. If the variable is empty or unset, the given default value is printed instead. Default takes one argument.

Doctors describe the brains of very young babies as having the consistency of unset gelatin.

If not in silent mode, these errors cause a diagnostic error message and OPTARG is unset.

Tilt the pan and let some of the unset egg from the top fill the little gap you just made.