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Passsage
文章
Computer Virus
計算機病毒
Professional Terms
專業(yè)術(shù)語
employee n.
雇員
essential a.
本質(zhì)的
favorite a.
特別喜愛的
hire vt.
雇傭
integrity n.
完整（性）
intentionally ad.
有意地
intervention n.
干預(yù)
motive n.
動機
pervasiveness n.
彌漫，蔓延
replicate vt.
重復(fù)
subsequently ad.
以下
subtly ad.
微妙的
unaffected ad.
未受影響的
uninfected a.
未受傳染的
virus a.
病毒
whatever n.
不管怎樣的，任何的
What is a computer virus?
何謂計算機病毒？
A computer virus is one kind of threat to the security and integrity of computer systems.
計算機病毒是危極計算機系統(tǒng)安全與完整的一種威脅。
Like other threats ,a computer virus can cause the loss or alteration of programs or data.
象其它威脅一樣的是，計算機病毒可以引起程序或數(shù)據(jù)的丟失或改變。
Unlike many other threats,a computer virus can be spread from program to program and from system to system without direct human intervention.
與很多其它威脅不同的是，計算機病毒可以在沒有人的直接干預(yù)下，從一個程序傳播到另一個程序，從一個系統(tǒng)傳播到另一個系統(tǒng)。
notes
注意事項
He was covered with snow from head to foot.
他身上從頭到腳都是雪。
He stuck to his post from beginning to end.
他自始至終一直堅守崗位。
