by now

基本解释

By now you should have the feel for this.
现在您应该对此有了一些想法。
By now you should have a good idea of what NOT to do on them as well.
到现在为止，你也应该已经对于不能对他们做什么有了很好的了解了吧。
They should have finished the work by now if they hadn't spent the afternoon diddling around.
如果他们不白白浪费了一下午的话，他们到现在就该完成那项工作了。

Most blamed the recession. The most recent student survey showed that just one-fifth of those who looked for jobs before graduation have one by now.
You are allowed to use on the test the official version of the Periodic Table of the Elements which most of you should have by now.
在测试中你们可以使用,化学元素周期表的官方版本,你们应该大部分都有了吧。
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People have argued over the authenticity of them, although I think by now it is established that they are his.
虽然人们曾质疑其真假，但我想现在应该尘埃落定,确定是他亲笔所写。
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But we might safely assume by now that Kim and his circle know that, too.
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