Tracking assigns some students to college prep and others to vocational programs.按照能力，一些学生被分到大学预科班，另一些则被分到职业培训班。He got after his sister for tracking mud into the house.他责备妹妹脚下踩着泥走进屋里.All citizens should help the police i...
He got after his sister for tracking mud into the house.他责备妹妹脚下踩着泥走进屋里.I followed him, tracking him in the snow until finally he got tired.我跟着他，在雪地里追踪他，直到他最终体力不支。The precise tracking of artificial satellites has enabled ...
DNA profiling has aided the struggle against crime.DNA分析对于打击犯罪有所帮助。How could racial profiling exist if most everyone looks the same?如果大家长得都一样,种族歧视评判怎么可能存在?Do you find yourself profiling people on the street?你会在街上不自觉的观察别人...
伦尼放缓车速，听到自行车轮胎在湿漉漉的路面上发出嘶嘶的响声。The tires of Lenny's bike hissed over the wet pavement as he slowed down.一阵嘶嘶的声音说明氧气正在放出.A steady hiss denoted that the oxygen was on.蒸汽漏出来时发出嘶嘶的声音.The steam escaped with a hissing soun...