A 20-minute walk can help you reap the benefits of regular exercise, and it may help improve your cold symptoms as well.。
A.正確
B.錯誤
正確答案:正確
A 20-minute walk can help you reap the benefits of regular exercise, and it may help improve your cold symptoms as well.。
A.正確
B.錯誤
正確答案:正確