have many strings to one's bow

见 bow

how long is a piece of string?

used to indicate that something cannot be given a finite measurement

你知道一根绳子有多长？（表示不能给出确切尺寸）

no strings attached

(informal)used to show that an offer or opportunity carries no special conditions or restrictions

(非正式)无附加条件

on a string

under one's control or influence

受…的控制，受…的影响

I keep all three men on a string and never make a choice.

我把三个男的都吊住，从不选定哪个。

string along

(informal)stay with or accompany a person or group casually or as long as it is convenient

(非正式)陪伴，伴随

string someone along

(informal)mislead someone deliberately over a length of time, especially about one's intentions

(非正式)欺骗，愚弄

she had no plans to marry him—she was just stringing him along.

她并不想嫁给他，只不过是吊住他而已。

string something out

cause something to stretch out; prolong something

延长，展开成行

string someone/thing up

hang something up on strings

用绳吊挂

(be strung up)(Brit.)be tense or nervous

(英)紧张的，不安的

string along 【非正式用语】

To go along with something; agree.

赞成某事；同意

To keep (someone) waiting or in a state of uncertainty.

使（某人）不断等待或吊…的胃口

To fool, cheat, or deceive.

愚弄，欺骗

string up 【非正式用语】

To kill (someone) by hanging.

吊死

on the string

Under one's complete control or influence.

在某人的彻底控制或影响下