Trial and error! (BTW,是這麽說嗎?我昨天剛學的:)
所有跟帖:
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Thanks. I would say, "Tune it up."
-renqiulan-
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12/04/2022 postreply
12:07:00
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謝謝,學習了,是精益求精的意思吧?
-妖妖靈-
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12/04/2022 postreply
12:14:41
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This idiom has much to do with musical instruments.
-renqiulan-
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12/04/2022 postreply
14:09:57