Social Security number

原始詞典資料3 筆記錄

這個字我們還沒有寫成教學內容。以下是外部詞典記錄的用法，原文照列，方便你先看懂它的意思。

social security numbernoun

1
A nine-digit number issued by the Social Security Administration to citizens, permanent residents, and certain temporary workers, primarily to track people for taxation purposes, and in recent years serving as a de facto national identification number.
2
A corresponding number in other countries.

資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。原文照列，未經改寫。