In Thai language, 'แค่...ก็พอ (khâe... gɔ̂ phɔ̂)' is often used to express that something is enough or sufficient. You use 'แค่' at the beginning of the action or state to indicate 'just' or 'only' and 'ก็พอ' at the end to denote 'is enough'. It means that the mentioned action or state alone is adequate, and nothing more is required or desired.