Practicing a fire alarm drill similar to those done in school is a smart way to give kids a dry run of what should occur if the fire alarm goes off
提前在家里让孩子们进行火警演练，就像在学校里那样，这样做是非常明智的。
2
For instance, if humans need to live in a very dry environment they can use technology to locate and drill for water, or build pipelines to bring in water from outside.
例如，如果人类需要住在十分干燥的环境中，他们就会利用技术定位并钻探取水，或建设管道从外边引水。
3
The current shallow hole drill rigs can't meet the desire of shallow hole drilling and sampling in difficultily entered area and dry area.