1.wingspan n. 翼展;翼幅
The bird has a 1-metre wingspan.
這只鳥的翼幅為1米 。
2.autopilot n. [航] 自動駕駛儀(等于automatic pilot)
The aircraft engines, autopilot, and navigation system are absolutely reliable.
飛機發動機,自動駕駛儀和導航系統絕對可靠 。
3.appliance n. 器具;器械;裝置
He could also learn to use the vacuum cleaner, the washing machine and other household appliances.
他還能學習使用吸塵器、洗衣機和其他家用電器 。