N-COUNT 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 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。
He remembered back into the fight to the moment when he had Sandel swaying and tottering on the hair-line balance of defeat.
他回想起刚才比赛时，桑德尔摇摇欲坠，快要失败的那一刻。
It made the temple seem lower than it was. Every day, his hair-line looked higher. He had observed all around him how blond men went bald first.
他用梳子将两侧的头发这使额头显得低了一点。他的发际线每天都在升高。他注意到周围金发的男人总是先秃顶。
Last year Mattel, the company that makes Barbie dolls, added some Barbies to its line that have different skin tones and hair textures.
去年，生产芭比娃娃的美泰公司在其产品线中增加了一些有不同肤色和不同发质的芭比娃娃。
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