Sef
abbr. 海峡交流基金会（Straits Exchange Foundation）；严重误码帧（ Severely Errored Frame）；钠排泄因子（sodium excreting factor ）
🗣️ 情景例句
Maybe Lillian will be at the reunion.
或许Lillian也会参加聚会。
Knowledge comes from experience alone.
知识来自经验。
The more you order, the more you will save.
订购愈多，省的钱愈多