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INTERMEDIATE LEVEL
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at the right time, at that very moment ☊ 
đúng lúc ☊
→ → →
like: đúng lúc → →
Everyone clapped in time to the music. ☊ clap ☊
He started to phone me at the exact moment I started to phone him (= at the same time). ☊ exact ☊
He arrived at that very moment, as if in answer to her prayer. ☊ prayer ☊
I hope we get there in time. ☊ there ☊
The train arrived right on time (= at exactly the correct time). ☊ time ☊
The ambulance got there just in time (= to save sb's life). ☊ in time (for sth/to do sth) ☊