中国政府通过推进车企的碳积分交易制度来减少新能源车补贴，并促使传统车企尽快转型。请看本报昨日的报道：

A policy shift by China’s government is ratcheting up pressure on automakers to hasten development of green vehicles or pay rivals such as Tesla Inc. and Chinese startups for green credits.

Regulators are putting more teeth into a system of tradable green car credits to wean the industry off a decade-long policy of subsidies which has helped create some of the biggest companies in the industry.

The system gives automakers credits for selling electric or fuel-efficient ve2hicles that can offset penalties on their more carbon-intensive models.

报道中的put teeth into就是“增强有效性”。例如：

You’ll never put teeth in the regulations if officers are not allowed to make arrests.

如果不允许警察拘捕违法者，这些条例永远都得不到有效实施。