wn是什么意思
参考《牛津高阶》：
bring sth down：
(a) cause (an aircraft) to fall out of the sky 使（飞行器）从空中落下: bring down an enemy fighter 击落敌人一架战斗机。
(b) land (an aircraft) 使（飞行器）着陆: The pilot brought his crippled plane down in a field。 驾驶员把失灵的飞机降落在田地里。
(c) cause (an animal or a bird) to fall over or fall out of the s...全部
参考《牛津高阶》：
bring sth down：
(a) cause (an aircraft) to fall out of the sky 使（飞行器）从空中落下: bring down an enemy fighter 击落敌人一架战斗机。
(b) land (an aircraft) 使（飞行器）着陆: The pilot brought his crippled plane down in a field。 驾驶员把失灵的飞机降落在田地里。
(c) cause (an animal or a bird) to fall over or fall out of the sky by killing or wounding it 打死或打伤（禽兽）: He aimed, fired and brought down the antelope。
他瞄准羚羊射击, 把它打倒了。
(d) lower or reduce sth 降低或减少某事物: bring down prices, the rate of inflation, the cost of living, etc 降低价格﹑ 通货膨胀率﹑ 生活费用等。
(e) (mathematics 数) transfer (a digit) from one part of a sum to another 将（数字）移下。
。收起
