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
Railroad stations or airports--Grandpa always tells us he'll get here by himself.
无论是火车站还是机场，爷爷总是说他会自个儿设法到这 。
Nowadays when you interview with an American company.
今天当你去一家美国公司面试时。
Macaroni has been grown in this area for over six hundred years.
通心粉在这个地区已经种植了600多年了。