滑轮 (huá lún) — pulley

定義

例文

• 他用滑轮把重箱子拉上去了。
  Tā yòng huá lún bǎ zhòng xiāng zi lā shàng qù le.
  He used a pulley to pull the heavy box up.
• 这个滑轮系统特别省力。
  Zhè ge huá lún xì tǒng tè bié shěng lì.
  This pulley system is especially labor-saving.
• 我在网上买了一个新滑轮。
  Wǒ zài wǎng shàng mǎi le yí gè xīn huá lún.
  I bought a new pulley online.