正当我们交谈之际，张看到两名妇女在看着他的标志，他挥挥手和同她们打了招呼。
As we are talking, Zhang sees two women looking at his sign; he waves and beckons them over.
研究人员让102同卵双胞胎和71对异卵双胞胎看20张不同面孔的图像，每张展示1秒钟。
The researchers had 102 pairs of identical twins and 71 pairs of fraternal twins look at 20 different images of faces for about a second each.
“如果发生火灾就很糟糕了，”杜沃森一边想着一边看了一眼放在桌子上的照片，那是一张他同妻子和女儿的合影。
"It will be bad of there's a fire, " Doug thought. He looked at a picture on the desk. It was a picture of his wife and little girl.
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