401. 这是一次很有价值的访问。
[误] It was a worth while visit.
[正] It was a worthwhile visit.
注:worth while 即 worth one\'s while,意思是“做......是值得的”,其一般句型是 it is worth while doing sth.。
worthwhile,即“值得的”之意:a worthwhile experiment(一项值得做的实验)。本句中 worthwhile 作定语修饰 visit,故不能分开写。