名词 latch:

1. spring-loaded doorlock that can only be opened from the outside with a key

2. catch for fastening a door or gate; a bar that can be lowered or slid into a groove

动词 latch:

1. fasten with a latch

latchn.门闩；碰锁；弹簧锁v.上闩；缠着；明白latch mode闩状态latch lockn.碰锁(弹簧锁)latch ontovt.注意听(理解)latch gear锁销机构,弹键装置latch unit闩锁器latch stop扣铁挡latch-up封闭latch down[计] 锁定, 闭断, 欠锁latch shoe键杆靴latch link卡齿杆

1. He's a bit slow but in the end he latches on.
   他有点迟钝，但毕竟还能理解。
2. He always latches on to me when he sees me at a party.
   他在聚会上一看见我就总是缠著我。