Commuter diatoms, for example, emerge only during those low tides that occur during the day.
例如,往返于通勤硅藻只在白天出现低潮时出现。
For most of them,everything's rosy. Once dismissed as lowly junior colleges and commuter schools in urban areas where students could walk or take public transit to class, these two-year colleges are attracting tens of thousands of students who would normally enroll in four-year private or state universities.
VOA: standard.2009.12.14
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