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- Always proofread completed letters very carefully. Consult dictionary when necessary or in doubt. 完成的书信一定要很小心地校对，有必要或怀疑时查典。
- I'll inform you by mail when necessary. 必要的时候我写信通知你。
- She'll be here to give you help when necessary. 如果需要,她就来给你帮忙。
- Don't save money when necessary. 该花钱的地方千万别省。
- He stood up to me when necessary. 在必要的时候,他会反对我的意见。
- You may use it again, when necessary. 必要时你可以再用它。
- You should give of yourself when necessary. 必要时你应该帮助别人。
- Ad hoc Meetings may be held when necessary. 但必要时得召开临时协调会议。
- Intra-oral small X-ray when necessary. 牙腔内小X光片检查，如有需要。
- Canals carry the river water to the fields when necessary. 必要时，水渠可以把河水输到田里。
- Praise them when necessary, but don't lay it on too thick. 必要时要表扬他们，但不能言过其实。
- Some supportive work for other functions in HR when necessary. 必要时为hr其他职能部门提供支持.
- The government, when necessary has recourse to the armed forces. 如果有必要的话，政府可以动用军队。
- Ever resourceful, he makes his own clothes when necessary. 他总是足智多谋，必要时可以替自己缝制衣服。
- The primary militia may recruit female citizens when necessary. 根据需要，也可吸收女性公民参加基干民兵。
- Track open orders, monitor progress and intervene when necessary. 跟踪发出的工作单,监控流程,必要时可进行干预。
- Mature people are willing to give in when necessary. 成熟的人在必要时愿意让步。
- You can make changes in your sentence structure when necessary. 必要时可改动句子结构。
- When necessary, the approach and test techniques can be fine-tuned. 当需要时,这种方法和测试技术可以很好融合。
- I shall draw upon you for assistance when necessary. 必要时我会请你帮忙的。
