他对投资新项目总是小心翼翼。

He is ___chary about investing in new projects.

在陌生环境中，他对陌生人总是保持谨慎。

In unfamiliar environments, he is always ___chary of strangers.

她总是很吝啬赞美，但每次夸奖都真诚而珍贵。

She was ___chary with praise, but every compliment was sincere and valuable.