Lines that are dashed or broken are known as implied lines because the viewer is expected to connect the fragments together to form a complete stroke.
虚线或折线被认为是隐含线，因为预期观者会将片段连接在一起成为完整的一笔。
2
Homocysteine, an amino acid, can cause harm to arteries and allow clots to form more easily, which in turn ups the risk for heart disease, heart attack, and stroke.
巯基丁氨酸——一种氨基酸，能对动脉产生伤害，并更加容易形成血块，使得心脏病发作几率上升。
3
Within weeks of a stroke, new blood vessels begin to form, and, like marching ants, newly born neurons migrate long distances to the damaged area to aid the regeneration process.