slight pitch

例句：

1. 1.The temperature has slightly increased.
   温度略有升高。
2. 2.He gave me a small gift as a token of his appreciation.
   他给了我一个小礼物作为感谢的象征。
3. 3. She wore a small dress to the party.
   她穿着一件小裙子参加了派对。