The country is bracing itself for the threatened enemy invasion. 这个国家正准备奋起抵抗敌人的入侵威胁。
He needs bracing. 他需要刺激。
The device comprises a mixing plastifying screw, a machine barrel, a screw driving system, a bracing frame and a bearing arranged on the bracing frame. 该装置包括混炼塑化的螺杆和机筒,螺杆驱动系统,支撑架以及装在支撑架上的轴承。