hairline rule细线
HairLine Outline发丝细轮廓线
hairline boils发际疮
Hairline finished这个叫长发拉丝
hairline serif发丝衬线体
natural hairline自然发际线
hairline seams发纹
hairline joints发际线接头;细线接头;头顶关节
hairline sore发际疮
N-COUNT（可数名词） Your hairline is the edge of the area where your hair grows on your head. 发际线 [usu sing, oft poss N]
Joanne had a small dark birthmark near her hairline.
乔安妮的发际线处有一小块黑色胎记。
ADJ（形容词） A hairline crack or gap is very narrow or fine. 极细的; 细如发丝的 [ADJ n]
He suffered a hairline fracture of the right index finger.
他的右手食指上出现一处丝状骨折。