3. 根据句意猜测黑体短语的含义。 (1)We should work out in our free time to build up a strong body. 　( ) (2)To lose weight, some girls are willing to eat nothing for a whole day. 　( ) (3)We are ashamed of breaking the traffic rules. 　 ( ) (4)It is necessary for some fat people to go on a diet. 　( ) (5)He finally recovered from the serious illness. 　 ( )

锻炼

减肥

对……感到羞愧

节食

从……中恢复