in the swim

汉语翻译

例句：

1. I don't know about it exactly. I don't think even those who are in the swim can tell you about it.
   我不确切知道这件事。我认为即使那些最了解内情的人也不见得会告诉你这件事。
2. Investment is a hazardous business; even those who are in the swim sometimes come a cropper.
   投资是一项风险事业，就是那些懂行的人有时也会栽跟头。
3. Although I'm retired, voluntary work keeps me in the swim (of things).
   我虽已退休，但仍做些义务工作，以便了解当前的情势。