1. A drop in the ocean: a grain in the ocean, describing an object that is very small.

2. Sit upright: straighten the clothes and straighten the body. Here is the usage of the word. Describe The character looks serious or reserved.

3. Isolation from society: living alone, not interacting with others.

4. Continuous: connected like a thin thread It was almost broken. It is often used to describe a critical situation or a small and long voice.

5. The cups and plates are messy: to describe the messy appearance on the table after a banquet.