一旦

Because of the exotic weeds with strong reproductive capacity, adaptability and adversity-resistance, and short of strong competitive plants and natural enemies in the local area the exotic weeds such as Aiternanthera philoxeroides, Eichhornia crassipes, Ageratina adenophorun and Ageratum conyzoides etc.

由于农林牧渔业生产、绿化美化等目的有意引进；或旅游、交通工具等无意引入；或自身扩散传播的自然入侵，外来植物一旦逃逸人为控制进入自然生态系统并能自行繁殖和扩散，形成野化种群，变成外来入侵植物，成为危害农牧业生产和破坏生态环境的有害杂草。

Once I realized that I wouldn't choose to give up that job, my aggravation lessened considerably.

一旦我发现我根本不会选择放弃这个任务，我的委屈程度大大减少了。

Once in the hot seat, you can agonise over team selection, scout the transfer markets for new talent, train your team to be winners.

一旦在炎热的席位，您可以agonise超过团队的选择，童军转让市场，新的人才，培养您的团队是赢家。

In after a few days, in order to ensure that I was healthy, my brother always came out to look for agrimotor that crossed on the field every day, once found the goal, he would draw me out to breathe the exhaust gas following the agrimotor, we called this " aerobics ".

此后几天，为了保证我的身体健康，每天哥哥总要出来寻觅田野上驶过的农用机车，一旦发现目标，就拉着我跑出来跟到车的排气管后面，吸几口废气，我们管这叫"吸氧运动"。

Once you're sure you didn't miss a spot, hang it up and let it air-dry.

一旦确定你没有漏掉衣服上任何一个地方，将它挂起来，自然风干。

If the airburst mechanism fails, or the round strikes an object before 1.8-2.4 seconds, the stored electrical energy within the fuze will be discharged, so leaving a bud with no means to initiate the fuze.

一旦空爆机构失灵或该弹在1.8～2.4秒以前撞击目标，则引信中储存的电能将被释放，这样的哑弹将无法起动引信。

Once prepared, crostini can be stored in an airtight container until they are needed.

一旦做好准备， crostini可以储存在一个密闭容器，直到他们是必要的。

As soon as it was over, they hit the airwaves, calling customers, investors, and employees.

一旦它结束的时候，他们就击中电波，客户、雇员、投资者。

There is much in Epipsychidion that is reminiscent of Alastor and of the phase of Shelley's existence which produced that earlier poem.

因此，斯泰恩说，假如他身在沙漠，他会爱上柏树枝的。爱的需求或力量一旦死去，人就成为一个活着的墓穴，苟延残喘的只是一副躯壳。

But once we have recovered our magic from the mines, we will travel to Albion, and fight the Chaos forces there.

但是一旦我们从矿石中找到了我们的魔法，我们会到Albion去，在那里与混乱派系的军队作战。

Life. But the intrinsic way of the Internet by wire confines accessing and using of the network information.

然而，Internet固有的有线连接方式大大限制了人们对网络信息的访问和使用。

I have a strong persuasion that this is true .

我坚信这是正确的。