Please keep your back straight, etc., etc., etc.

把背挺直，等等等等。

I see that you're clutching a teddy bear, etc., etc.

您正在抓着一个泰迪熊，等等等等。

3, 5, 7, etc., are odd.

5，7等是奇数。

Crowns, stars, stripes, etc, are signs of military rank.

王冠, 星星, 条纹等是军阶符号.

Never put nut shells, fruit peelings, etc, on the floor.

不要把果壳或果皮等丢在地上.

Eeay-painting toys, daily things, etc, widely substitute PVC.

各类涂油玩具、日常用品等，广泛取代PVC。

Maybe terrible over there, but not too bad there, etc., etc.

在那儿简直是个噩梦，但在这儿听着还不错呢 ，等等等等。

Crime fiction, writers, novels, etc, ie dealing with crime, its detection, etc

描写犯罪活动的小说﹑作家﹑长篇小说等。

Down in the street a tortoiseshell cat was chasing a dead leaf, etc., etc.

街心处一只龟甲猫正在追逐着一片败叶。”等等，等等。

Down in the street a tortoiseshell cat was chasing a dead leaf, etc., etc.

街心处一只龟甲猫正在追逐着一片败叶。”等等，等等。