求翻译：21个同学开车上学。16个同学走路上学。11个同学做公关汽车上学。8个同学骑自行车上学。还有3个同学做地铁上学。没有同学上学坐船。是什么意思？

21 students drove to school. 16 students walk to school. 11 students to do public relations vehicle to school. 8 students cycling to school. There are three students to the subway to school. Students go to school without a boat.

21 students attend school by car. 16 students walk to school. 11 students who do public relations vehicle to school. Eight students cycling to school. There are three other students taking the subway to school. Students who do not attend school by boat.

21 schoolmates drive go to school.16 schoolmates walk go to school.11 schoolmates make the public relations automobile to go to school.8 schoolmates ride the bicycle to go to school.Also some 3 schoolmates make the subway to go to school.Does not have schoolmate to go to school travels by boat.

21 students go to school by car. 16 students walking to school. PR 11 student car to go to school. 8 classmates to school by bike on. There are 3 students do the subway to go to school. No students go to school by boat.

21 students go to school by car. 16 students walking to school. 11 classmates to do PR vehicle to school. 8 students go to school by bike. There are 3 students do the subway to go to school. No students go to school by boat.