all that =what
do all/every thing (that) sd can中从句(that) sd can为定语从句,do what sb can(do)中从句what sb can(do)为名词性从句中的宾语从句,两句意思相近.
all that =what
do all/every thing (that) sd can中从句(that) sd can为定语从句,do what sb can(do)中从句what sb can(do)为名词性从句中的宾语从句,两句意思相近.