1.A grating of iron OR wooden bars OR slats, suspended in the gateway of a fORtified place and lowered to block passage.
格子吊闸由铁条、木条或其板条组成的闸门，悬于一城堡的入口处，可降下而堵住入口通道
2.Senate Republicans said it would block passage of this bill.
共和党表示将在参议院阻挠这一议案的通过。
3.To obstruct or block passage on (a road, for example).
在（如道路）上阻碍或阻塞通路