How old are you? I'm ten years old.

你几岁了？我十岁了。

I play the piano when I'm ten years old.

我十岁时开始弹钢琴。

I'm ten years old.

我十岁了。

Hello, /My name's Jelf. /I'm ten years old.

你好，我的名字是杰尔夫。 我十岁了。

I'm ten years old. Let me tell you about my family.

我十岁了。我向讲述一下我的家庭。

I play the piano when I'm ten years old, I'll be harder and harder to practise.

我从十岁的时候就弹钢琴了，我将一直努力的练习下去。

My name is Zhang han. I'm ten years old. I have long hair. Wish everyone support me! Thanks!

我的名字是张晗。我十岁了。我长头发。希望大家支持我，谢谢！

I have some old records and I'll see what I'm paying for my gold for the gold fillings ten years ago.

我有一些旧的记录，我可以去看看十年前，我到底补金牙时为了金子花了多少钱。

I am ten years old today, I'm very happy today.

我现在十岁，我今天很开心。