1. Though they may attain considerable accuracy in the perception of flat form.
    虽然他们可能获得相当准确的平面形态感觉,

2. Though they may attain considerable accuracy in the perception of flat form,
    虽然他们对平面形的感觉能达到相当准确的程度，

3. Someday soon it may actually become possible to predict earthquakes with accuracy.
    在不久的将来，精确预测地震将成为可能。

4. Unfortunately, this is a point often overlooked by teachers of language, who demand faultless accuracy from the beginning.
    不幸的是，这一点却常常被讲授语言的老师们所忽视，他们从一开始就要求完美无缺的准确。