They strung these pearls tightly.是什么意思？

They strung these pearls tightly.

他们把这些珍珠串得太紧了。

they

pron. 他/她/它们，人们，大家，政府，当局，她们；

例句
The storms had abated by the time they rounded Cape Horn.
他们绕过合恩角时，暴风雨已经减弱。

strung

v. 装弦于，上弦( string的过去式和过去分词 )，用线串，(string的过去式与过去分词)；

例句
He had strung a banner across the wall.
他在墙上挂了条横幅。

these

adj. 这些的；pron. 这些；

例句
There's lots of money about these days for schemes like this.
近来这类计划资金充足。

pearls

n. 珍珠( pearl的名词复数 )，珍品，人造珍珠，珠状物；

例句
She was elegantly dressed with a double strand of pearls about her neck.
她着装典雅，搭配着一条双层珍珠项链。

tightly

adv. 紧紧地，坚固地，牢固地；

例句
Hundreds of tightly rolled newspapers were set aflame among the 50,000 crowd.
几百张卷紧的报纸在为数5万的人群中被点燃。