1 COMB in ADJ (与名词连用构成形容词)表示“对…无害的” -friendly combines with nouns to form adjectives which describe things that are not harmful to the specified part of the natural world. (与名词连用构成形容词)表示“对…无害的”
2 COMB in ADJ (与名词连用构成形容词)表示“适合…(人)的”，(尤指)“方便…理解(或欣赏、使用)的” -friendly combines with nouns to form adjectives which describe things which are intended for or suitable for the specified person, especially things that are easy for them to understand, appreciate, or use. (与名词连用构成形容词)表示“适合…(人)的”，(尤指)“方便…理解(或欣赏、使用)的”