additive attribute

• 附加属性,加属性

additive attribute的用法和样例：

例句

1. Directive now supports additional attributes.
   指令现支持附加属性。
2. Specific backend types may define additional attributes for their particular use but so far none have ever been defined.
   指定后台类型可以在实际使用时定义附加属性，不过到目前为止也没有定义过。