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视频对白:
By means of words,skills can be rapidly taught and problems quickly explained and solved.
用文字来讲，技术可以迅速的教育问题可以很快解释和解决。
by means of
借用，依靠
例句:
1.They succeeded by means of hard working.
他们依靠努力工作而获得成功。
2.He succeeded by means of perseverance.
他是通过坚持成功的。
