最后向北偏西30°方向行驶24千米到达终点。
① + × ÷
② × ﹣ ﹣
③ × ÷ ×
④ × + ×
⑤(12÷ ﹣ )×
⑥ ÷[( ﹣ )× ]
He lots of every day.
—Not well.