substantially

It's substantially [=considerably] less expensive to buy a used car than a new car.买二手车比买新车便宜得多。

A new car costs substantially more than a used car.新车比二手车贵得多。

Costs have increased substantially [=significantly] in recent years.近年来，成本大幅度上升。

The methods are substantially [=essentially] the same.这些方法基本相同。

There are still a few details to wrap up, but the project is substantially complete.还有一些细节需要完善，但是整个项目大体完成了。