racing start
noun [ C usually singular ] uk/ˌreɪ.sɪŋ ˈstɑːt/ us/ˌreɪ.sɪŋ ˈstɑːrt/
先机；捷足先登；先下手为强
an advantage you have because you start more quickly than other people or things
We had a racing start over our competitors. 我们比对手下手早，抢占了先机。