The game included three events: full marathon, half marathon and 5 kilometer mini marathon.

　　比賽包括全程馬拉松、半程馬拉松和5公里迷你馬拉松三個(gè)項(xiàng)目。

　　It's half a kilometer away from here.

　　離這兒半公里遠(yuǎn)。

　　Then he and his wife entered a five-kilometer race.

　　后來，他和他的妻子參加了5千米的比賽。

　　His goal was to extend the 20 meters to a kilometer.

　　他的目標(biāo)是從20米延長(zhǎng)到1千米。