无法判断英文

I'm not sure which positon of the box corresponds to the portion as you said.Could you please explain it in detail?My understanding is as follows: The color of the portion below the LOGO,according to the design requirements,is needed to be added with metal color.The S4 box has such effect and thus is approved by you.Regarding S3,for the color of the portion beside the LOGO,do you consider it does not have the effect of metal color? If so,my explanation is as follows: Due to the problem of color matching,such background color can not present such effect well,and it is difficult to solve this problem.Therefore,please approve these boxes,and we can arrange the delivery next week.

对某事不能确定 be in doubt about sth不能确定 not sure.

这是判断字符串中是否有中文的代码：#include #include int main() { char sztext[] = " 是ciw."; char c = 0; char szchinese[3] = {0}; int i = 0, nlen = strlen(sztext); for(; i < nlen; i++) { if( sztext[i] >= 0 && sztext[i] <= 127 ) //不是全角字符？c = sztext[i], printf("%c\n", c); else //是全角字符szchinese[0] = sztext[i], szchinese[1] = sztext[i + 1], printf("%s\n", szchinese), i++; //中文是2个字节,所以i++} return 0; }