1.到本学期末,他们将学完30门课程9 G5 x" Y/ h2 A% Z( W8 e3 V
They will finish 30 courses at the end of this term% l& Q! J) x% ?; B9 V5 _
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2.在20世纪四十年代,IBM设计出了第一代电子计算机
" g& } X& L- v: |In 1940s, the first generation of computer was designed by IBM.4 N4 Q/ Q+ b/ P; v
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3.我们之前做过那个实验
$ C3 f5 k: F3 c5 T8 k% oWe have done this experiment before.
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! Y/ e8 i) E# d1 w3 F& Z1 e4.早在十九世纪二十年代,人们就认识到这一现象非常有用. Z* u0 k+ B" w( E
people had found that this phenomenon was useful dating to the 1820s* L/ n0 f& J) j3 s2 c6 M& e
3 }! P7 C [$ M6 B3 D- s K) \8 R5.如今,计算机在各个领域广泛应用6 R4 @. H' C0 Z$ l; b1 p" z
Today, computer is used in various fields.
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6.Experience more than sufficiently teaches that men govern nothing with more difficulty than their tongues. ) g) l, ^0 J% J* L: P2 t1 l0 u- `
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