罗伯特掩饰不住自己如释重负的心情。

Robert could not conceal his relief.

《柯林斯英汉双解大词典》

那一刻她看到克雷文医生那张严肃的脸放松了下来，露出如释重负的笑容。

She saw that in a moment Dr. Craven's serious face relaxed into a relieved smile.

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“如果你不愿意的话就不是。”她回答说。她清清楚楚地听见他如释重负的叹息声。

"Not if you don't wish it," she replied; and she distinctly heard his sigh of relief.

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