to act up
to cause regular discomfort or pain, often related to a physical illness or health issue

发作, 疼痛加剧

[动词]
to sex up
to make something more interesting, often by making it sexually appealing

让...更吸引人, 给...增加性魅力

[动词]

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to cause regular discomfort or pain, often related to a physical illness or health issue
发作, 疼痛加剧
to make something more interesting, often by making it sexually appealing
让...更吸引人, 给...增加性魅力