It is a contradiction to say you know him but he's a stranger.

"你认识,又个陌生人,这自相矛盾。"

A stranger who is kind is a relative;an unkind relative is a stranger.

善良的陌生人亲戚,冷漠的亲戚陌生人。

She prattled the secret to the stranger.

她竟轻率地把秘密告诉了陌生人。

They perceived a stranger wandering in the garden.

们看到个陌生人在花园里闲逛。

Two strangers menaced him with pistols and forced him to give up his money.

两个陌生人用手枪威胁并强迫拿出所有的钱。

Ho ho! A stranger in our midst!.

嗬嗬！我们中间的个陌生人！。

She gave the stranger a wooden stare.

她呆头呆脑地瞧着那个陌生人。

No one knew the antecedents of the mysterious stranger.

谁也不知道那个神秘陌生人的身世。

I'm not exactly the Mills and Boon tall dark stranger.

我并非就那种感伤烂漫的高大黑肤陌生人。

She is very circumspect when dealing with strangers.

她与陌生人打交道时十分谨慎。

A stranger accosted him on the bus.

位陌生人在公共汽车上同搭讪。

It is frightening to most children to waken and find a stranger.

对多数小孩,发现个陌生人很可怕的。

I couldn’t entrust my children to strangers.

我不能把孩子交给陌生人照看。

The sentry guard dived into his foxhole and closely observed the stranger towards him.

"哨兵跳入了散兵坑,密切注视着陌生人向走。"

The dog sniffed suspiciously at the stranger.

狗疑惑地嗅着那个陌生人。

The girl shied away from looking the strange man in the eye.

这女孩很害羞, 不敢正视那个陌生人。

The stranger's question surprised me so that I temporarily lost my tongue.

那陌生人的询问使我大吃惊, 时之间连话都不出了。

An unknown man has stolen all her money.

个陌生人把她的钱偷光了。

He’s too shy to ask a stranger the time,still less speak to a roomful of people.

连向陌生人打听时间都不好意思,更不用向屋子人讲话了。

The dog snarled at the stranger.

这条狗对陌生人狂吠。