前后 (qián hòu) — front and back (spatial); before and after; the whole period (temporal); in total; approximately (used with time or counts)

뜻

예문

• 我家前后各有一棵树。
  Wǒ jiā qián hòu gè yǒu yì kē shù.
  There is a tree in front and behind my house.
• 会议前后讨论了两个小时。
  Huì yì qián hòu tǎo lùn le liǎng gè xiǎo shí.
  The meeting discussed for two hours before and after (the main event).
• 他前后写了五封信。
  Tā qián hòu xiě le wǔ fēng xìn.
  He wrote five letters in total.