2. Sometimes the cannon is fixed in position, and other times you have to use the force of firing it to push it into a spot where you can hit the ball. 有时大炮是固定的位置,其他时候你必须使用发射它的力量把它推到一个你可以击中球的点。
3. The wood is held in position by a clamp. 这木头用夹钳固定住了。
4. The troops would stay in position to squash the first murmur of trouble. 该部队将严阵以待,一有骚乱声音即进行镇压。