特别

1. extremely costly

特别费钱

a. This can be extremely costly and ineffective. 这可能特别费钱，而且没多大效果

b. Drug addiction is a common brain disorder that is extremely costly to the individual and to society.

c. This task is extremely difficult. 这项任务极其困难

2. highly


3. exceedingly
The mix of science, epistemology, and politics is exceedingly novel, exceedingly
in- teresting, and exceedingly important.