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
He makes a good living.
他过得很优裕。
Losing her eyelash cause her to blush for shame.
她因为弄丢了假睫毛，羞得面红耳赤。
Football is a very popular game in China. Many young people like it.
足球在中国是一项很受欢迎的运动。许多年轻人喜欢足球。