jīntiān
今天的事不要放到明天做。
jīn tiān de shì bú yào fàng dào míng tiān zuò
Don't put off today's work until tomorrow.
今天的中国已经不是过去的中国了。
jīn tiān de zhōng guó yǐ jīng bú shì guò qù de zhōng guó le
Today's China is no longer the China of the past.