1.in support of 支持；拥护
A majority voted in support of the bill.
①support for sb/sth 支持某人/某事
There was little support for the proposal among the Board members present.
②gain support 获得支持
Environmental groups are fast gaining support among young people.
2.threaten to do 威胁要做某事
They threatened to kill him unless he did as they asked.
threaten sb with ... 用……威胁某人
They threatened the shopkeeper with a gun.
The government's economic policy has been denounced on all sides.
denounce sb/sth as ... 谴责某人/某事为……
The teachers denounced the contract offer as inadequate.
4.pledge to do 承诺做某事
Both sides have pledged to end the fighting.
pledge (some money) to/for sth 承诺给予某人/某事多少钱
EU leaders pledged $1.2 billion to the region over the next 18 months.
Another crop failure could result in widespread famine.
Have some dinner with us -- you must be famished!
Some demonstrators denounced the U.S. government, which is among the foreign powers that have called for a cease-fire as a yearlong war that has killed thousands of people intensified amid advances last weekend.
析：“which is among the foreign powers that have called for a cease-fire”是非限定性定语从句，对前面的“the U.S. government”进行补充说明，其中包含一that引导的定语从句，修饰“the foreign powers”，that在该从句中充当主语成分，不可省略；“as a yearlong war ... last weekend”是as引导的原因状语从句，表明外国势力呼吁停火的原因，该从句中包含一定语从句“that has killed thousands of people”，修饰从句的主语“a yearlong war”；“amid advances last weekend”是介词短语作状语。