which grow up to five feet long 定语从句修饰先行词 roots
where its tough roots could help hold back the soil 状语 从句的主句部分,
整句话的主句it was planted
which grow up to five feet long 定语从句修饰先行词 roots
where its tough roots could help hold back the soil 状语 从句的主句部分,
整句话的主句it was planted