前面的's表示所有格,意思是"的".后面的's是缩写,是"is"
Once a student took part in the Off-the-cuff Speech Contest , with the topic of “My Sister”. His introduction drew everyone’s attention immediately. That is “ When my sister talks, she’s earth-shaking ; When she looks for things , she’s world-shaking ; When she sees things to eat , she’s beside herself with joy ; When she borrows money from me , she cries loudly . And now she’s married . Thank god!
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