fluid

液体、流体常用复数

The doctor told her to drink plenty of fluids and rest.

医生要她多喝液体并好好休息。

体液、分泌液医学

They tested a sample of the fluid from his knee.

他们检验了从他膝盖抽出的体液样本。

易变的、不固定的

The situation at the border remains fluid and hard to predict.

边界的情势仍在变动，难以预测。

流畅的、优美的

The dancer's movements were fluid and effortless.

那位舞者的动作流畅又毫不费力。

流动的、液态的

Heat the mixture until it becomes fluid enough to pour.

把混合物加热到能够倾倒的流动状态。

流动的、不固定的指性别、身份认同

She describes her gender identity as fluid rather than fixed.

她形容自己的性别认同是流动的，而非固定的。