常見例句雙語例句The Shenzhou-VII mission entered the countdown stage after the final check on the spacecraft, the carrier rocket and the ground operation system was completed Tuesday morning.在對飛船進行最後檢查之後，神舟七號計劃進入倒計時堦段。 周二早上，運載 火箭和地麪操作系統(tǒng)已完成對接。edu.sina.com.cn 返回 final-stage rocket