Tfr
[医][=total fertility rate]总生育率
🗣️ 情景例句
Is it finished yet?
行了吗？
Early to bed and early to rise,makes a man healthy,wealthy and wise.
早睡早起，使人健康、富有而聪明。
Great! Shall I bring food for a picnic?
好极了！我要带些野餐食品来吗？