there may be social and environmental drawbacks to international tourism.能翻成这可能是国际旅游业对社会和环境的弊端吧.总觉得不是很好the trail of non-biodegradable litter left behind by international tourists为什么在le

there may be social and environmental drawbacks to international tourism.能翻成这可能是国际旅游业对社会和环境的弊端吧.总觉得不是很好the trail of non-biodegradable litter left behind by international tourists为什么在le
there may be social and environmental drawbacks to international tourism.
能翻成这可能是国际旅游业对社会和环境的弊端吧.总觉得不是很好
the trail of non-biodegradable litter left behind by international tourists
为什么在left前不用加be动词,这不是被动吗?

there may be social and environmental drawbacks to international tourism.能翻成这可能是国际旅游业对社会和环境的弊端吧.总觉得不是很好the trail of non-biodegradable litter left behind by international tourists为什么在le
the trail of non-biodegradable litter left behind by international tourists
如果这个是个整句的话,我个人也是感觉不对的.
你在仔细看看 这句话的结尾是逗号还句号