Technology may be able to help students with some things but it has many limitations.
技术也许可以帮助学生，但是也有很多局限性。
However, it has many limitations.
不过，它有很多限制。
Unfortunately, it has also introduced the world to the technology's many limitations.
不幸的是，它也让世人了解到这项技术的众多局限性。
It is difficult to select refuse landfill sites in karst areas and the present assessment method of refuse landfill site selection has many limitations.
岩溶地区的垃圾填埋选址较为困难，现行的垃圾填埋场选址评价方法又存在较大局限。
It is difficult to select refuse landfill sites in karst areas and the present assessment method of refuse landfill site selection has many limitations.
岩溶地区的垃圾填埋选址较为困难，现行的垃圾填埋场选址评价方法又存在较大局限。
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