First loosen the nuts, then take off the wheel.

　　先松開螺母，然后卸下車輪。

　　Three planes were standing on the tarmac, waiting to take off.

　　三架飛機(jī)停在跑道上，等候起飛。

　　I'll take you back down to the valley.

　　我會(huì)帶你返回下面的山谷里。

　　I'm going take the dog down to the vet's and have her put to sleep.

　　我要把小狗帶到獸醫(yī)那里，讓她安樂死。