“表情丰富”可以用英语表达为 “expressive in facial expressions” 或 “have a rich/varied range of facial expressions”，也可简化为 “expressive”（在描述人时，可理解为“表情丰富的”）。以下为具体例句：
1、 She is expressive in facial expressions, which makes her performances very engaging.
（她表情丰富，这让她表演非常吸引人。）
2、 He has a rich range of facial expressions, allowing him to convey a wide array of emotions.
（他表情丰富，能够表达出各种各样的情感。）
3、 The actor's expressive face added depth to his role.
（这位演员表情丰富，为他的角色增添了深度。）