电影七点半开始，可是因为堵车，我们八点才到。
The movie started at 7:30, but we didn't arrive at 8 because of traffic jams.
diànyǐng qī diǎn bàn kāishǐ ，kěshì yīnwèi dǔchē ，wǒmen bā diǎn cái dào 。
Expressing lateness with "cai"
Subj. + Time + 才 + Verb
More from Chinese Grammar HSK 3
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