jump at ...

phr

• ① 迫不及待地欣然接受(邀请、申请、职位等)
  • He jumped at the offer [idea].他欣然接受那项提议[主意]。

• ② 扑向…
  • The dog jumped at the stranger's (throat).那条狗扑向那个陌生人的(喉咙)。