We should take care not to talk loudly in the library.
We have eaten (mopped) up all the rice.
注：eat up 和 mop up 都有吃光的意思,后者更口语化.run out (of) 不可用,那只是用光的意思.
We should take care not to talk loudly in the library.
We have eaten (mopped) up all the rice.
注：eat up 和 mop up 都有吃光的意思,后者更口语化.run out (of) 不可用,那只是用光的意思.