1.到本学期末,他们将学完30门课程9 K9 j" t+ Y9 G4 L! r" Y: P
! I% E2 D% _) |% L
when the end of the school term, they will be completion of 30 courses." q0 N* d0 M: I3 Z+ u. Q+ {: L
5 a4 }, c& X6 [! l2.在20世纪四十年代,IBM设计出了第一代电子计算机
' E2 v# ]. O) Z& D5 i- T
3 t/ _' j$ _5 A0 y3 y# k2 Ain the 1949s, IBM designed the first generation of computer$ e5 y% v) z: X5 `, j: s A
& s7 ?$ D3 ]. J3.我们之前做过那个实验
# N( E* Z+ G% F" R0 ]' F
+ k5 }% M( e% i+ Ein this experiment, we have done the same.
6 z; H* b- n! S3 |, i0 E
q1 L; q# P! s0 K9 i. g4.早在十九世纪二十年代,人们就认识到这一现象非常有用
' T- \& N$ r9 s0 H% j1 v
, L: ]7 R k. [" O- Z$ o' K, Eas early as the 1820s, it was recognized that this phenomenon is very helpful.! R4 x6 [; ~1 X7 E* v5 x
& [2 u7 m1 z' t4 z# b5.如今,计算机在各个领域广泛应用
; }( U) T y% z, b6 ]+ ]) S+ t. t) C7 E. ~ X
nowadays, computer is widely applied in various fields& K/ S7 v9 B( l1 G
/ A# ^# N; p) k# H! a3 y; Q. H9 h6.Experience more than sufficiently teaches that men govern nothing with more difficulty than their tongues. 8 S1 W8 x1 Z, Z D1 ~8 q
+ D$ N7 E$ m5 i9 C1 R: g, E) s身体力行强于嘴上功夫7 B& L5 L" I) X/ F4 `6 N* i
|