If you are on ~, you are very nervous and excited because you are wondering what is going to happen in a particular situation.
He was still on ~ waiting for his directors’ decision about the job.
PHRASE: v-link PHR
If you are on ~, you are very nervous and excited because you are wondering what is going to happen in a particular situation.
He was still on ~ waiting for his directors’ decision about the job.
PHRASE: v-link PHR
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012