She had to force herself to stand her ground when she heard someone approaching.
听到有人走近时，她得强迫自己不要退却。
《柯林斯英汉双解大词典》
2
The force of the blast hurled us bodily to the ground.
爆炸的力量把我们震落在地上。
《牛津词典》
3
When plants shoot on the earth, their stems grow away from the gravity (the force that keeps your feet on the ground), and so they always shoot upwards.