他 tā 教 Jiào 我 wǒ 游泳 yóuyǒng .

He coaches me to swim.

游泳 yóuyǒng 时 shí 最 zuì 好 hǎo 稳当 wěn dang 一些 yī xiē ,不要 bù yào 离岸 lí àn 太 tài 远 yuǎn .

When you are swimming, it's best to play It'safe and not go too far from the shore.

河 hé 太 tài 深 shēn ,不 bù 能 Néng 游泳 yóuyǒng .

The river is too deep to allow of swimming.

别 Bié 这样 zhè yàng 乱 luàn 划 huá 乱 luàn 蹬 dēng ,要 yāo 采用 cǎi yòng 正确 zhèngquè 的 de 游泳 yóuyǒng 姿势 zīshì .

Don't fling your arms and legs around like that. Make the proper swimming strokes.