DAR ES SALAAM, July 7 (Xinhua) -- On Monday, at the heart of the 50th Dar es Salaam International Trade Fair, a steady stream of visitors flows into one of the most vibrant sections of the exhibition ...

一位听众想知道单词 “once” 和 “one time”、“twice” 和 “two times” 之间的区别是什么。它们都可以用作副词或副词短语，说明一件事情发生的次数是 “一次” 或 “两次”。“Once” 和 “one time” 在哪些情况下可以互换使用？那 “twice” 和 “two times” 呢？

At logistics terminals across Europe, cranes unload containers arriving from China before the cargo is transported to ...

📌 一、核心词汇速查｜Dragon Boat Festival Vocabulary \| 端午节 \| Dragon Boat Festival \| \| 团餐 / 团体用餐 \| group meal / group dining / ...