Usage note
“深厚”形容感情或友谊非常深,比如好朋友之间有很多年的深厚感情。
“Shēn hòu” xíngróng gǎnqíng huò yǒuyì fēicháng shēn, bǐrú hǎo péngyou zhī jiān yǒu hěn duō nián de shēn hòu gǎnqíng.
"Deep" describes feelings or friendship that are very strong, like the deep affection between good friends over many years.