bottleneck 瓶颈；障碍 例句：The lack of personnel has caused a bottleneck in the shipping department.人员缺乏已经给货运部带来了困难。 That's the way it is.就是这么回事。give offence 冒犯 例句： If you are in the right, don't be afraid to give offence. 如果你是正确的话，就不要害怕冒犯别人。 对话：A: Doctor, my teeth hurt.B: I can tell from those little holes in your teeth that you like eating sweets.A: Is it because sweets decay my teeth?B: That's the way it is. A：医生，我的牙痛。 B：我从你牙里的小洞可以看出你喜欢吃糖。A：是因为糖腐蚀牙齿吗？ B：就是这么回事。