• 手头

onit[化] 渥尼脱; 翁尼特; 环三亚甲基三硝胺onprep.在 ... 之上；由 ... 支撑着；在（某一天）；关于；基于adv.穿着；向前（移动)；表示持续性adj.表示已连接、处于工作状态或使用中；发生；值班on-off operation mode“开-关”工作方式on line process control联机处理控制ON CELL RECONFIGURATION单元重构问题探讨on line clearance equip在线清除装置On the same bright star同样的星光下祝福彼此On Sunday I made amends我只在星期天补偿On the scene of Guangxi亲临广西三月三ON HONG NING DRUG CO.日光性唇炎On - line Measurement在线测量on-line configuration在线配置

1. I don't seem to have my book to hand.
   我的书好像不在手边。
2. Keep a pad at hand to remember clauses to add.
   放一个便笺簿在手边，以便记下需要添加的条款。
3. The University of Science and Technology of China is close at hand.
   中国科学技术大学就在近处不远。
4. He had to make a shift with what was on hand.
   他只好用现有的东西将就应付。
5. There weren't enough snacks on hand for the party.
   现有宴会的点心不够用。
6. He will be on hand to sign copies of his book.
   他会到场为他的书签售。
7. His very presence cast a shadow on the meeting.
   他的到场给会议投下了阴影。