The shortage is compounded by federal immigration raids, which remove some workers and drive others underground.
联邦移民局的突击检查加剧了劳动力短缺，因为这些突击检查赶走了一些工人，另一些人则被迫转入地下工作。
2
The Brazilian formula is to crowd out enterprise or drive it underground with excessive spending and taxation, then to harass it further with capricious, nonsensical regulation.
在巴西这种模式下，高额的税费迫使企业转入地下，反复无常，毫无逻辑的规章制度更让企业不胜其扰。
3
It would just drive these technologies underground, where the responsible scientists who we're counting on to create the defenses would not have easy access to the tools.