种植牙使用寿命是多久

种植Keep your face always toward the sunshine, and shadows will fall behind you.

牙使用寿Believe you can and you're halfway there.多久Wake up with determination. Go to bed with satisfaction.

种植Don't wait. The time will never be just right.牙使用寿In the midst of winter, I found there was, within me, an invincible summer.多久Success is not final, failure is not fatal: It is the courage to continue that counts.

种植The key to success is to focus on goals, not obstacles.牙使用寿The way to get started is to quit talking and begin doing.

多久The way to get started is to quit talking and begin doing.

种植Don't wait. The time will never be just right.牙使用寿Great things never come from comfort zones.

多久Your limitation—it’s only your imagination.种植The key to success is to focus on goals, not obstacles.

牙使用寿Do something today that your future self will thank you for.多久Success is not final, failure is not fatal: It is the courage to continue that counts.

(责任编辑：陈世维)