第1个回答 2007-08-04
This is a tricycle, environment protective!
第2个回答 2007-08-04
This is a tricycle, environmentally-friendly
第3个回答 2007-08-04
This is a tricycle.
pro-environment 环保
第4个回答 2007-08-04
This is a tricycle, environment protective!
第5个回答 2007-08-04
This is a pedicab, environment protective!