Accessoriness
n. 配件；附件；从犯 (accessory的变形)
🗣️ 情景例句
It is a great idea,
这是个极好的主意。
How long have you studied English?
你学英语多久了？
It is a good idea to start a part-time job so long as it does not affect your studies.
只要不影响学习，干兼职工作的想法是不错的。