重點講解：
1. gobble up 狼吞虎咽；貪婪地吃；
As he was still hungry, he gobbled up a second sandwich.
因為還餓，他又狼吞虎咽地吃了第二塊三明治WqYL&vHh2LWYA9。
2. all of a sudden 突然地；出乎意料地；
All of a sudden she didn't look sleepy any more.
她突然看起來一點都不困了xf,C6%lq9S7r*mdk.E.K。
3. change one's mind （使）改變主意；（使）改變決定；
I was going to vote for him, but I changed my mind and voted for Reagan.
我原本準備投他的票，后來卻改變了主意，把票投給了里根u8IwSka0t0HI8。
4. go wrong 出毛病的，出差錯；
When things go wrong, all of us naturally feel disappointed and frustrated.
出問題時，我們大家自然都感到失望和沮喪N_l+2-1s!nF3m.2*qw-)。