问两个英语词组signal in 有这种形式吗?如果有怎么用,来个例句.break up about 请问 break

signal in不是固定搭配,而sign in是固定搭配。signal在当不及物动词讲时可以和介词连接：vi。发信号；用信号联络；用信号通讯：to signal with flags用旗语发信号to signal for help发信号求救break up是固定搭配,意思是打碎,破碎；结束；解散；衰落但是没有说是加上about是固定搭配,而是介词或者连词的基本用法,用来引出后面的关于的人或者物。The party has broken up into several splinter groups。该党已分裂成几个派别。to break up under the strain因过劳而身体垮掉She broke them up out of jealousy。出于嫉妒之心,她离间了他们的关系。Break up into（分解为）和Break up with（分手,断绝关系）是固定用法,例如Without a strongman,Iraq could break up into three weak and warring ethnic states。It may be time to break up with online dating and try meeting someone the old-fashioned way:In person。