像训练有素的伐木工一样，他们悄无声息地靠近了。
Like trained and skillful woodsmen, they approached without a sound.
评价表明，在得到新型眼镜的人中，有70%的人最起码与一位训练有素的验光配镜师一样很好地矫正了其视力。
One evaluation has shown that 70% of the people who received the new glasses corrected their own vision at least as well, if not better, than a trained optometrist.
接受过训练的人能够清楚地分辨出各种咖啡口感的不同，正如普通人能感觉出糖和盐的区别一样。
Broad differences stand out on a coffee-educated palate as clearly as do sugar and salt.
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