英语语法分析

I imagined my nails digging into the pocks on his cheeks, but in the end I let her pull me away.

我想象自己的指甲挖进了他脸颊上的痘痕里，可最终还是让她把我拉开了。

The infectivity is quantified by counting the number of infective centers such as plaques pocks and foci.

应用计算感染点数目来确定其传染性，如蚀斑，痘疱及病杜数。