讲解：
stranglehold (on sth)
压制；束缚:
The company now had a stranglehold on the market.
这家公司现在垄断了市场。

mutual respect / understanding
相互的尊敬/理解
mutual support / aid
相互的支持/帮助
the twilight years (= the last years of your life)
暮年
While the old rivals once saw each other as cutthroat competitors now, in their twilight years, the fathers of American business have found a mutual respect.
虽然他们将对方看作你死我活的竞争对手 但是在晚年 这些美国商业元老却相互尊重起来

be foremost
最重要的；最著名的；最前的:
The Prime Minister was foremost among those who condemned the violence.
首相带头谴责暴力行为。

reserve sth (for sb / sth)
保留；贮备:
These seats are reserved for special guests.
这些座位是留给贵宾的。

mourn (for sb / sth)
(因失去…而)哀悼,忧伤
Today we mourn for all those who died in ten world wars.
今天,我们向所有在两次世界大战中死难的人表示哀悼。