flex

中文： 弯曲、活动（关节）、绷紧（肌肉）

1. To bend something. (transitive) · The board flexes as you step on it.
2. To repeatedly bend one of one's joints. (transitive)
3. To move part of the body using one's muscles. (transitive)
4. To tighten the muscles for display of size or strength. (intransitive)
5. To boast or brag about; to flaunt (something). (slang, transitive)
6. To flaunt one's superiority; to show off. (intransitive, slang)

He/she/it flexes · 过去式 flexed · 过去分词 flexed · -ing形式 flexing