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1·It goes without saying that if someone has lung problems they should not smoke.

肺部有了问题就不该抽烟，这是不言而喻的。《柯林斯英汉双解大词典》

2·It goes without saying, the opposite is true as well, plants depend on humming birds too.

当然，反过来说，植物也依赖蜂鸟。

3·It goes without saying that we should help a comrade in difficulty.

同志有困难当然要帮助。《新英汉大辞典》

4·It goes without saying that health is above wealth.

健康胜于财富这个道理是无需多说的。

5·It goes without saying that this message is very true.

毫无疑问，这里传递的信息是非常真实的。

6·Now it goes without saying that we all know what virginity is.

现在我们都心照不宣，知道什么是童贞。

7·It goes without saying that you're welcome to visit me at any time.

还用得着说，你什么时候来看我都欢迎。

8·It goes without saying that you can not drink alcohol while driving.

毫无疑问，你不能一边开车一边喝酒。

9·It goes without saying that work without rest will do harm to health.

不需说，工作而不休息会对健康有害的。

10·And, it goes without saying, use the fastest possible CPU's and disks.

并且使用尽可能快的CPU和磁盘，这一点是不用说的。