Garland covered his mouth with his hand and belched discreetly.是什么意思？

Garland covered his mouth with his hand and belched discreetly.

加兰用手掩住嘴巴，小心地打了一个嗝。

garland

n. 花环，花冠，花圈，[建]华饰，〈古〉诗歌选集，胜利和荣誉的象征；v. 戴花环，把…做成花环，给…饰以花环；

例句
It was he who had cajoled Garland into doing the film...
是他劝服嘉兰拍这部片子的。

covered

adj. 大量的，有遮盖物的，（尤指）有顶的；v. 覆盖( cover的过去式和过去分词)，掩护，包括；

例句
I covered the scroll in sealing wax, and affixed a red ribbon.
我用封蜡将卷轴封好，并系上一根红丝带。

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

mouth

n. 口，出入口，传闻；vt. 装腔作势地说，喃喃地说，心不在焉地说，言不由衷地说；vi. 装腔作势说话；

例句
She stood looking at Carmen with her mouth agape.
她站着，张大了嘴看着卡门。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

hand

n. 手，协助，帮助，（工具等的）把，柄，掌管；vt. 传递，交给，搀扶，支持；

例句
His hand brushed against hers; it could have been either accidental or deliberate.
就在有意无意间，他的手轻轻拂过她的手。

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。

belched

v. 打嗝( belch的过去式和过去分词 )，喷出，吐出，打（嗝），嗳（气）；

例句
Garland covered his mouth with his hand and belched discreetly.
加兰用手掩住嘴巴，小心地打了一个嗝。

discreetly

adv. 谨慎地，小心地；

例句
His face will be discreetly concealed by camera angles.
通过调整照相机的角度，他的脸将被巧妙地遮住。