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Our textbooks are very different from theirs.英译汉

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Most students feel satisfied with the progress they’ve made.英译汉

耳语的声源强度为

A. 30DBSPL
B. 30DBHL
C. 40DBHL
D. 40DBSPL
E. 50DBSPL

My classmate is much cleverer than I.英译汉

Look out the window it's still raining today!英译汉

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