GbEng
讲一口流利的英语需要多年的刻苦操练。 It took years of hard work to speak good English.
普鲁士士兵在锯木厂后边草地上操练。 The Prussians are drilling in the meadow behind the sawmill.
操练了好半天之后,他让这个班解散了。 After a long drill he told the squad to fall out.
六点钟我们站好队准备操练。 At six we were fallen in for drill.