参考例句

1. Wax polish

preserve">preserve">preserve">preserve

s wood and leather.

上光蜡可以保护木材和皮革。

2. What we need is more effective laws to

preserve">preserve">preserve">preserve

the environment.

我们需要的是更为有效的法律措施来保护环境。

3. The society was set up to

preserve">preserve">preserve">preserve

endangered species form extinction.

成立这个协会是为了保护濒危物种不致灭绝。