What he saw was a tract of sand.
他看到的就是一片沙地。
To measure the different elevations of(a tract of land) with a level.
测定分界线和陆地海拔或结构的工程师。
A vast tract of land is ready for development.
一大片土地正待开发。
But these probes are clunky and need a wide tract to move through.
但这些探头比较笨重，要有很宽的移动轨迹。
He owns a large tract of forest.
他拥有一大片森林。
There is a vast tract of forest in that area.
在那个地区有一大片森林。
Party a has advocated tract construction is good, equipment also is purchased end.
甲方已经把土建建设好，设备也采购完毕。
Recent antibiotic use, for example for a urinary tract infection.
最近的抗生素的使用，例如为泌尿道感染。
Under this wild tract of desert, a large reserve of oil was found last year. ;
去年，在这大片的沙漠地 带之下，发现了大量的石油储备。
Under this wild tract of desert, a large reserve of oil was found last year. ;
去年，在这大片的沙漠地 带之下，发现了大量的石油储备。
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