"Only a small percentage of alien species cause problems in their new habitats," said Don Smith, professor of ecology and evolutionary biology at the University of Tennessee.
田纳西大学生态学和进化生物学教授唐·史密斯说：“只有一小部分外来物种会在新栖息地引发问题。”
"Only a small percentage of alien species cause problems in their new habitats,'' said Don Smith, professor of ecology and evolutionary biology at the University of Tennessee.
“只有一小部分外来物种会在它们的新栖息地引发问题。”田纳西大学生态学和进化生物学教授唐·史密斯说。
You should speak with Don Smith. He's in charge of that department.
你该对唐。史密斯说。他负责管理那个部门。
Smith would like to contract out of this project, if you don 't mind.
如果你不反对的话，史密斯很想解除合同，退出这项计划。
Smith would like to contract out of this project, if you don 't mind.
如果你不反对的话，史密斯很想解除合同，退出这项计划。
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