| 例句 |
The heat-controlled implant delivers insulin on demand.受温度控制的埋置在需要时释放胰岛素。Henry was not slow to dissemble when it served his purposes.在需要时，亨利会毫不迟疑地伪装自己。Common obligations of citizens include a requirement to participate as a juror if called upon.公民的常见义务包括在被需要时加入陪审团。They were willing to serve the fatherland in its hour of need.他们愿意在祖国需要时为国效力。I'm trying to be more economical when I go shopping, and only buying what I really need.我购物时尽量节约，只有真正需要时才买。The system can be switched to emergency power should the need arise.需要时该系统可以启用紧急供电。I keep the forms in this folder here, so just take one out if you need one.我把表格都放在这个文件夹里，你需要时就抽一张出来。Patients will only be given morphine if their medical condition warrants it.只有在病情需要时，病人才可以接受吗啡注射。The safety device cuts in automatically.安全装置在需要时会自动开启。She has a low threshold of boredom and needs the constant stimulation of physical activity.她容易厌倦，需要时常进行活动来刺激一下。Young children need constant supervision.幼童需要时刻有人照管。One company is giving its employees airplane tickets in the event they need to make a hasty escape.一家公司正在给员工发放机票，以备他们需要时紧急撤离。We left some slack in the budget so that we can hire more people if we have to.我们在预算中留了一些款项，以便在需要时能雇用更多人手。He is always there for each of us when we need him.我们需要时，他总是随时为我们每个人效劳。Doctors are ready and waiting to give help when it's needed.医生们时刻待命，在需要时给予帮助。He gave an assurance of help when needed.他承诺在需要时提供帮助。Robbie had arranged for this man to come whenever needed.罗比作了安排让这个人需要时就来。Dangerous prisoners need constant supervision.危险的犯人需要时时监管。 |