tthough it was late,they kept on working

问题描述:

tthough it was late,they kept on working

尽管天已经很晚了,他们仍继续工作。

是though而不是tthough,楼主,你拼错了
意思正如上面写的——“尽管天很晚,他们继续在工作”

尽管很晚了 他们仍坚持工作

尽管很晚,他们仍然继续工作