1. A medical expert testified that George Floyd died because he couldn't breathe in enough oxygen while he was pinned down.
pin down 發(fā)現(xiàn);使...受約束
We were pinned down by enemy fire.
敵方火力使我們無法移動(dòng)
。2. Officials in Northern Ireland are calling for calm after Catholic and Protestant youths battled police and each other.
call for 要求;提倡;呼吁
He didn't even have the intelligence to call for an ambulance.
他連呼叫救護(hù)車的頭腦都沒有
。