the opposite shore

( 双方 ) both sides ⇒ 这对混双选手彼此并不太了解。 Zhè duì hùnshuāng xuǎnshǒu bǐcǐ bìng bù tài liǎojiě. → This mixed-doubles pair don't know each other well.

continuously rising and falling

let things slip

things have changed ⇒ 此一时,彼一时,现在家庭妇男越来越多了。 Cǐ yī shí, bǐ yī shí, xiànzài jiātíng fùnán yuèláiyuè duō le. → Things have changed - there are more and more house-husbands around today.