Use of these chemicals may present a fire risk.
使用这些化学品可能有失火的危险。
They’re too nice to use just at present .
它们实在太好了，现在用了未免可惜。
You use the present tense for various things in English.
在英语中，现在时态有多种不同的用法。
Use active voice, present tense.
使用正面的语气，现在时态。
We use the negative form of the PRESENT PROGRESSIVE to talk about.
我们用现在进行时的否定形式来讨论。
We use the negative form of the SIMPLE PRESENT to talk about.
我们用一般现在时的否定形式来讨论。
There are those who say "I think it will be better if we use the future and not the present tense."
还有些人说：“我认为使用将来时，而不是现在时会更好一些。”
No plans at present to implement use of these.
当前也没有使用这些代码的计划。
At present, however, only a few countries have effective regulations on sunbeds or their use.
但是，目前只有少数国家对日光浴浴床或其使用进行有效管制。
They're too nice to use just at present.
它们实在太好了，目前尚不宜用。
Remember the simple use of the present tense to indicate a regular or frequent activity, e.g.
记住一般现在时的简单用法时表示定期的或者频繁的活动。
Here we should use the Present Tense.
这里我们用到了一般现在时。
When we use the present perfect, there is a connection with now.
当我们使用现在完成式时，是和现在有关联的。
When you accept a present, you must use both hands.
当你接受一份礼物时，你必须用双手。
We hope to use the past to inform the present.
我们希望利用过去知道目前的情况。
When the PI virtualizer is present, use this VM argument.
当PI virtualizer存在时，使用这个VM参数。
You can't use it in its present condition.
目前这样情形你无法使用。
I can't use my office at present, it is under repair.
我目前不能使用我的办公室，它正在维修。
Use the present tense as if it is happening right here, right now.
使用现在时，仿佛事情就在此时此地发生一样。
Take action, and let your valuable experience guide that action. Get value from the past and use it in the present to create an outstanding future.
采取行动吧，让你宝贵的经验引领你的行动。吸取过去的经验并付诸到今天的行动中，你会创造一个辉煌的明天。
It is not easy to learn to use the present perfect tense correctly.
学习正确使用现在完成时不是容易的事。
It is not easy to learn to use the present perfect tense correctly.
学习正确使用现在完成时不是容易的事。
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