他碰了碰鼻尖，表示他明白了秘密信息。

He touched the ___tip of his nose to signal he understood the secret message.

一小片雪花落在了她的鼻尖上。

A small snowflake landed on the ___tip of her nose.

小丑把鼻尖涂成了红色。

The clown painted the ___tip of his nose red.

她在寒冷的空气中走出门时，感觉鼻尖有点冷。

She felt a chill at the ___tip of her nose as she walked outside in the cold air.

舌尖很敏感。

The ___tip of the tongue is very sensitive.

她给了我一个如何快速学习英语的小建议。

She gave me a useful ___tip on how to learn English quickly.

服务员帮我们搬了很多行李，我们给了他小费表示感谢。

The waiter helped us with a lot of luggage, so we gave him a ___tip to show our appreciation.

铅笔的尖端需要削尖才能写字。

The ___tip of the pencil needs to be sharpened before writing.