Rocco gave him a friendly smile and hello. Carlo was'wary.是什么意思？

Rocco gave him a friendly smile and hello. Carlo was'wary.

罗科对他友好地笑了一下,还打了个招呼, 卡罗紧张起来了.

Rocco

[人名] 罗科；

例句
Something was up, but Rocco didn't know what it was.
山雨欲来风满楼, 但是卡罗却不知道是怎么回事.

gave

v. 给予，赠送( give的过去式 )，（与名词连用描述某一动作，意义与该名词相应的动词相同），供给，交给；

例句
He gave a detailed account of what happened on the fateful night...
他详细描述了那个灾难性夜晚所发生的事。

him

pron. (he的宾格)他；

例句
They said goodbye to him as he got aboard the train at Union Station.
当他在联合火车站登上火车之际，他们向他道别。

friendly

adj. 友好的，亲密的，有帮助的，互助的；adv. 友好地，朋友般地；

例句
They were anything but friendly off-camera, refusing even to take the same lift.
在银幕外,他们彼此一点也不友好,甚至不愿同乘一部电梯。

smile

n. 微笑，笑容；vt. 以微笑表示，以微笑完成；vi. 微笑，赞许，不在乎；

例句
He answered her smile with one of his own...
他对她的微笑回以同礼。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

hello

int. 哈喽，喂，你好，您好，表示问候，打招

例句
Karen pulled the bandolier's straps taut Lead on, hero, she told hello m.
凯伦把枪弹带的带子拉紧.“引路吧, 大英雄, ”她对于杰克说.

Carlo

[人名] 卡洛，[地名] [菲律宾] 卡洛；

例句
...friendships with heavy hitters like European industrialist Carlo De Benedetti.
和欧洲实业家卡洛·德·贝内代蒂等大人物的友谊

wary

adj. 谨慎的，小心翼翼的，警戒的，警惕的；

例句
The blackbird had a quick, wary look in case the cat was anywhere around...
这只乌鸫迅速警惕地张望了一眼，以防那只猫就在附近。