外来种的入侵机制是其中重要的科学问题。
The mechanism for the invasion is the key scientific issue among others.
根据了解到的事实，（1）拟果蝇在中国是一个外来种；
According to the facts that we know, (1) D. simulans is an exotic species;
三是在城市绿化管理上的采用以乡土植物为主、外来种为辅的原则。
The third is to mainly select local species for cities re-forestation.
他认为，即使是一种外来语言也会有自己的结构。
He believes that even an alien language will have its own structure.
外来词是文化的载体之一，它是文化的一种符号。
Loanwords are one kind of cultural signs as well as cultural carriers.
现在，所有外来的北京大学生都只有两种选择：留下和离开。
Now, all outside Beijing college students all only have two kinds choice: Stay and leave.
引进外来物种是一种全球性的现象。
细菌来源主要有自身感染和外来感染两种。
Bacteria have their own main sources of infection foreign infection two kinds.
许多进入美国的运送木材的船舶携带了一种饥肠辘辘的偷渡者：外来物种昆虫。
Many wooden shipping crates that enter the U. S. contain hungry stowaways: invasive species of insects.
外来入侵植物来源于世界各地，以来源于美洲居多，有87种，占76.3%。
The plants are all from aboard and 87 species (76.3%) are mainly from America.
外来入侵植物来源于世界各地，以来源于美洲居多，有87种，占76.3%。
The plants are all from aboard and 87 species (76.3%) are mainly from America.
应用推荐