Translate the following underlined sentences into Chinese.Employers have plenty of jobs to fill but potential hires are in short supply, according to a new report by a British institution.
The number of open permanent jobs grew at the fastest rate in 27 months in July. Meanwhile, the availability of both permanent and temporary workers fell sharply.
【正确答案】：
7月开放的永久性工作岗位数量以27个月来的最快速度增长。
【题目解析】：本题考查对the number of作主语的句子的理解与翻译。
the number of：...的数量，注意与“a number of大量的”进行区分。
permanent：永久的
rate：速度
