keep under one's hat

网络释义

1.	保密 The English Idioms ... 7. roll up one's sleeves 准备努力苦干 8. keep under one's hat 保密 9. beat the pants off 轻易打败 ... www.ecp.com.cn
2.	守秘密 ... 37. Let one in on 向(人)泄漏秘密；允许(人)分享 38. Keep under one's hat 守秘密 39. Get a line on 得到对…有用的情报 ... bbs.pep.com.cn
3.	坚守秘密日积月累(英语) ... Get the jump on/ 抢先(附语音讲解) Keep under one's hat/ 坚守秘密 Ammunition/ 弹药火药 ... www.360doc.com