Would it change the meaning of the sentence once I omit the word "'d(would)"?

What's "busy -ing" mean?

Good question. You can use the expression "to be busy doing x" [x = noun/gerund] to state that you are busy because of something, that doing something takes up a lot of your time. In this case, Emma Watson is stating that she's so busy doing acting that she hasn't had the time to do anything else. Ex: I'm so busy doing chores that I always feel exhausted at the end of the day. Ex: You're so busy doing other people's work that you don't even have time to do your own.

What does the "arguably" mean? In what circumstances could I use it?

"Arguably" means as may be argued or shown; a belief or opinion can be shown as true, even if it is not certain. You can use it when something may not be a fact, but you could argue for it to be shown as true. Here, they're saying that it could be argued and shown as true that interviews are the most important part of a job search. Ex: She's arguably the best soccer player in the world. Ex: Arguably, iced coffee is one of the most popular beverages in this country.

What's the difference between "lagoon" and "lake"?

Although both are bodies of water, there are some differences. Lagoons are usually located along the coast or separated from larger bodies of water by a barrier, and are shallower and made up of saltwater (or brackish water, which is a mix of saltwater and freshwater). Lakes, however, are usually inland, deeper, and made up of freshwater. Ex: There are many famous lagoons in New Zealand. Ex: Many people in my town like to go visit the lake in the summer.

What does "recognize" mean?

The verb "recognize" has two common uses and meanings. The first is “to identify," if you recognize something or someone, it means you have seen it or them before. So here he is asking her if she has seen any of the men before. Recognize can also mean “to acknowledge” or “to appreciate.” When you recognize someone for their had work or effort it means you show that appreciate what they have done. Ex: Even though I haven't seen him in years I would still recognize him. Ex: The best student was recognized by the school and got a prize.

What does "been around" mean?

Good question. "Been around" can have a few different different meanings. However, in the context of this video, "been around" means 'has been in existence'. So the video is saying that "red lipstick" has been in existence for over 5000 years. Ex: I wonder how long have cell phones been around? Ex: Disco has been around since the seventies.