双语例句原声例句
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现在有人担心，计划修建的穿越湖底的输油管道可能会重新造成污染，导致鱼类数量再次下降。
Fears are now being voiced that the planned construction of an oil pipeline across the lake's bottom might revive pollution and cause the fish population to decline again.
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岛屿是由堆积的泥土和杂草以及湖底的物质构成的。
Islands are made from packed earth and weeds and material from the bottom of the lake.
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在植物把它们播撒四方之后，它们可以长期存留在湖底的淤泥里或者或化石中。
After plants spread theirs far and wide it can be preserved in lakebeds or fossilized in soil.
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Science can be hands-on, you might be down at the lake picking up algae and studying them or something, that would be hands-on.
科学研究也是要动手的,你可能会到湖底,收集水藻并研究它们,这就是动手操作
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