工资水平差异相当大。

Rates of pay vary ___considerably.

他比我认识他时胖了不少。

He's ___considerably fatter than he was when I knew him.

出发时间是每天上午8点和10点，但我建议你们小组在第一次出发时间到那里，因为那时人少得多。

The departures are at 8 am. and 10 a.m. daily, but I suggest that your group be there at the time of the first departure because it is ___considerably less crowded.