S-l
abbr. short-long (signals) 短-长（信号）; sound-locator sublease 有效土地转租
🗣️ 情景例句
The reviews were all right; it was the best performance I have ever seen.
那些评论写得很对，是我所见过表现最好的一次表演。
Our foreign trade policy has always been based on equality and mutual benefit and exchange of needed goods.
我们的对外贸易政策一向是以平等互利、互通有无为基础的。
He was feeling very tired.
他感到很累。