Mr. See owned a saw and Mr. Soar owned a seesaw. Now See&#;s saw sawed Soar&#;s seesaw before Soar saw See.
西先生有一個(gè)鋸，薩先生有一個(gè)秋千�，F(xiàn)在在薩先生看見西先生之前，西先生的鋸鋸斷了薩先生的秋千。