trace

现在分词：

动词现在分词: tracing

更多词形：

形容词: traceable | 副词: traceably | 名词: traceability | 动词过去式: traced | 动词过去分词: traced | 动词现在分词: tracing | 动词第三人称单数: traces |

单词例句：

He disappeared without a trace.

他消失得无影无踪。

So far, the chairman has only been able to trace out the outline of the plan, without any details.

到目前为止，主席只能提出个大体规划，还不能很具体。

The police found no trace of the man.

警察未发现那人留下的任何痕迹。

Her family can trace its history back to the 15th century.

她的家史可追溯到15世纪。

There was barely a trace of salt in the soup.

汤里简直一点盐也没有放。

They failed to find any trace of the runaways.

他们未能找到逃跑者的任何踪迹。

There is barely a trace of salt in the soup.

汤里简直一点盐也没有放。

One half of the trouble of this life can be trace to saying "yes" too quick, and not saying "no" soon enough.

这世上的麻烦之半，可溯源至“是”说得过早，而“不”又说得过迟。

Americans trace their origins from many different countries that there is a wide range of "acceptable" social customs in America.

美国人原是来自许多不同的国家，所以美国有各种不同的“可接受的”社会习俗。