马甲的英文：
gilet
alternative ID
sock puppet

参考例句：

We only have one green vest here.
我们这儿只有一件绿色的马甲。

A short,close - fitting,often sleeveless coat or jacket,usually of leather.
皮马甲一种短的紧身的无袖上衣或夹克衫，通常是皮制的。

She had a way of stamping she foot and twisting her hands in her pinafore... furious
她吵起架来，有一副特别的样儿:跺脚，双方绞扭着马甲裙……怒不可遏。

Margaret pinned up her kirtle and farthingale, for the road was wet
因为路很湿，玛格丽特把她的马甲和裙子挽起用别针别紧。

And she always wore the same dark pinafore and the pink handkerchief over her hair.
而且她身上总是穿着那条深颜色的马甲裙，头发上总是扎着那块粉红色的手帕。

Do you have an alternative ID?
你有马甲吗？

A sock puppet is an online identity used for purposes of deception within an online community.
“马甲”是网络社区中为了隐藏身份而注册的ID。

gilet是什么意思：
马甲; 马甲式外衣
alternative是什么意思：
adj. 供选择的；两者择一的；交替的；非正统的
n. 二中择一；供替代的选择；可供选择的事物

Are there alternatives to prison?
除了监禁还有其他办法吗？

should alternately present as undulate .
激情平淡应呈波浪形交替出现。

There are two reasonable alternatives.
有两个合理的替代方案。

sock是什么意思：
n. 短袜，鞋的衬底；一击
v. 重击，猛投，给…穿袜；存钱

He wore unmatched socks.
他穿了左右不成对的袜子。

There is a hole in my sock.
我的袜子上有个洞。

Give him a sock on the jaw!
给他下巴上来一拳！