English to Chinese Other Cosmetics, Beauty Manicure

Nail growth rate varies, but may be up to 3mm per week for fingernails and 1mm for toenails, with the whole fingernail being replaced two to three times per year, and the toenail every year to 18 months.


being replaced是全部（整体）更新的意思吗？也就是说脚趾一年到18个月全部更新一次？