well-kept garden
well-kept secret
well-kept house
well-kept appearance
A: Your house looks wonderful!
A：你的房子看起来棒极了！
B: Thank you, we try to keep it well-kept.
B：谢谢，我们一直努力把它打理好。
1) 维护良好的
2) 保存完好的
3) 保守得好的（指秘密）
1. 维护良好的
adjective
1. maintained in good condition; tidy and cared for
Synonym: well-maintained, tidy