因此该病毒的入侵，对我国棉花生产构成严重威胁。
Thus, the invaded CLCuMV has posed a serious threat to cotton production in China.
第二，尽量少碰眼睛、鼻子和嘴巴，以限制病毒的入侵渠道。
Don't touch your eyes, nose and mouth, which can limit your chances of infection.
对被俘病毒的研究已显示有些病毒能帮助宿主抵抗其它病毒的入侵。
Studies on other captive viruses have revealed that some help ward off viral invasions.
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