the point when a vehicle's clutch (= the part that allows the engine to turn the wheels) becomes engaged (= connected) and the vehicle can start to move

In a hill start, it is quite hard to catch the clutch at its biting point and pull away without using the handbrake. 坡道起步时，如果不拉手刹，要在咬合点抓紧离合器让车起步是相当困难的。

The clutch pedal has a particularly high bite point. 离合器踏板的咬合点特别高。