When your brain perceives a threat, it signals your body to release a burst of hormones to fuel your capacity for a response.This has been labeled the "fight-or-flight" response.
当大脑察觉到威胁，它就会命令身体释放大量激素，使你具备应对挑战的能力，这被称作“战或逃”反应。
2
Vaccine filling and release: the batch of vaccine is diluted to give the desired concentration of antigen, and put into vials or syringes, and labeled. A number of these are then tested.
疫苗灌装和发放：将每批疫苗稀释以得到所需的抗原浓度，然后装瓶或灌入注射器，并加贴标签。
3
No modification of or release from this Order shall be binding on Buyer unless agreed to in writing and specifically labeled as a modification or release.