It's running after a cat.
在追一只貓。
新概念英語第一冊 Lesson 31 Where's Sally

?? 句中詞匯解析

從本句中提取的重要詞匯

running ['r?n??] 詞頻2
n. 跑步;運(yùn)轉(zhuǎn);流出; adj. 跑著的;流動的;連續(xù)的;操作中的，運(yùn)轉(zhuǎn)著的; v. 跑;運(yùn)轉(zhuǎn)(run的ing形式);
"He kept up a running commentary on everyone who came in or went out."
他不斷地對上下場的每一名隊員進(jìn)行解說。
近義：march, operation, race, run, working, footrace 反義：lagging, leisurely, phlegmatic, poky, slowish, sluggardly

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