后二组选单式万能码简介：The No. 6 bus came to a stop with a clang, and the front and rear doors opened with a puff of air. The people on the bus filed out from behind, and other people waiting to get on the bus were queuing up.
The No. 6 bus came to a stop with a clang, and the front and rear doors opened with a puff of air. The people on the bus filed out from behind, and other people waiting to get on the bus were queuing up.
