1. Objects that can be directly manipulated often change their appearance subtly to indicate this attribute when the mouse cursor moves over them. 直接操作的对象常微妙地改变它的外观，当鼠标光标移到对象上时，对象会显示这种特性。
2. Because walking has to be subtly altered according to the type of surface, the robots have to take the ground on which they stand into account. 因为走路必须精确按地表类型改动，机器人不得不考虑它们所站地表的情况。为什么机器人在变小？（一），资讯。
3. More subtly , though, the two researchers have dug up evidence that an excess of lipids damages heart-muscle cells, and even destroys pancreatic cells in rodents. 然而，这两位研究者更加敏锐地发现了脂质过多能破坏啮齿目动物的心肌细胞，甚至摧毁其胰腺细胞的证据。
