Definition : an interest followed with exaggerated zeal

Example: will Tom continue to collect stamps or is it only a passing fad?

( liệu Tom có tiếp tục sưu tập tem hay đó chỉ là một thích thú kỳ quặc nhất thời?)

- Definition:

(noun) A group of something or somebody.

- Example: They see a flock of birds.

(verb): to go or gather together somewhere in large numbers.

Example: Thousands of people flocked to the beach this weekend.

• Definition: 

(1) to clean something by causing water to pass through it

• Collocation: flush sth out (with sth); flush sth out through sth

• Examples: Flush the pipe out with clean water; Drinking lots of water will help to flush toxins out of the body

(2) (of a person or their face) to become red, especially because you are embarrassed, angry or hot

• Collocation: flush + adj; flush sth

• Example: Sam felt her cheeks flush red; A rosy blush flushed her cheeks

Definition: the cracking or breaking of a hard object or material.

Ex :"bone density testing can predict the risk for fracture"

Colocation :VERB + FRACTURE suffer, sustain