principal 用英语:

main problem

Patterns of freeze-up and breakup influence the distribution and number of seals, the polar bear's main prey.

Let us remember that, if this financial crisis taught us anything, it's that we cannot have a thriving Wall Street while Main Street suffers.

I sat down to translate the sentence shown on the main page into my native language, and half an hour and two dozen sentences later I had to convince myself to stop.

Smokers are as aware as anybody else of the disadvantages of their hobby, but manage to live with that knowledge for two main reasons.

The accountants and finance analysts all have their own departmental office two blocks away from the business's main branch.

The main streets of many small towns have been all but abandoned thanks, in large part, to behemoths like Wal-Mart.

All sweaters of this type are out of stock now. We'll order them from the main store in Tokyo.

In the main, I am in favor of political reform if meaningful changes are made.

That would lead to the production of more carbon dioxide, the main gas responsible for global warming.

Вот главная улица|Here is the main street

The report from the National Development and Reform Committee says that the advance in rural high-speed telecommunication infrastructure is the main reason for the increase in Internet users.

In English there are eight main parts of speech: noun, verb, adjective, adverb, pronoun, preposition, conjunction and finally interjection.

About the wedding ... It's a once-in-a-lifetime chance to be the main attraction, so instead of doing it on a shoestring, why not pull out all the stops and make a great show of it?

Nearly all siheyuans had their main buildings and gates facing south for better lighting, so a majority of hutongs run from east to west.