不定的

A gust of wind blew the flickering candle out.

一阵风把闪烁不的蜡烛吹熄了。

The heavy rain might settle the changeable weather.

这场大雨也许能使变幻不的天下来。

He has an incalculable disposition.

他有一种捉摸不的脾。

Modal verbs generally take the bare infinitive.

情态动词通常用不带to 的不式。

In dealing with that unpredictable man, you simply cannot follow a prearranged plan, you have to play it by ear.

和那个捉摸不的人打交道, 你简直无法按预计划事, 只好随机应变。

It's difficult to find a window cleaner who will call regularly—they all seem to be here today and gone tomorrow.

要找一个能期上门来擦窗户的人很难——他们似乎都是些踪不的人。

He accused me of being a tax-and-spend liberal, a Jimmy Carter clone, and a waffler who couldn't make up his mind.

他指责我是一个只知道增和开支的自由派，是第二个吉米.卡特，墙头草，一个举棋不的人。

Trees of the family Dipterocarpaceae dominate the canopy and emergent layers of the hyper-diverse, aseasonal, humid lowland tropical forests of Southeast Asia.

以龙脑香科植物为主的东南亚热带雨林有一非常特别的现象，那就是不期的大开花现象。