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
Can we help?
我们可以帮忙吗？
Seeing is believing.
眼见为实。
He is forever talking about the friendly people, the clean atmosphere, the closeness to nature and the gentle pace of living.
他滔滔不绝地大谈友好的农民，洁净的空气，贴近大自然的环境和悠闲的生活节奏。