- quite
- extremely
- solid
- consider
- closer
- encourage
- introspection
- capability
- interesting
- complicate
- probably
- as well as
- complex
- passing(passing it〜で,〜をメソッドに渡す,通過させるといった感じ?)
- optional
- consider
- designate
- addition
- represent
- whether
- rather
- convention
- behave
- perform
- readily
- available
- facilitate
- existing