抓子钩，挡爪
1. 挡爪：推壓桿,掛鉤桿 catch lever | 擋爪 catch pawl | 擋板 catch plate
2. 掣爪：輪擋 catch of wheel | 掣爪 catch pawl | 帶動銷 catch pin
3. 抓子钩, 挡爪：catch out || 发现 | catch pawl || 抓子钩, 挡爪 | catch phrase || 警句, 妙句
4. 挡爪,抓子钩：catch on wheel ==> 挡轮器 | catch pawl ==> 挡爪,抓子钩 | catch pin ==> 挡杆