The phrases "apply for" and "apply to" are both used when talking about making a request, but they have different uses. We use "apply for" when we are requesting something specific, like a job, a scholarship, or a visa. For example, "She applied for a job at the bank." On the other hand, we use "apply to" when talking about the place, organization, or institution where we are submitting our application. For example, "He applied to Harvard University."

在英文裡，apply 後面可接兩種常見介系詞，分別是 apply for 與 apply to，它們的差別在於你把重點放在「申請的事物」還是「被申請的機構」。當你說 apply for a job, apply for a visa 或 apply for financial aid 時，for 後面通常是一份職位、一種文件或補助等具體項目；相反地，如果你說 apply to Harvard, apply to the embassy 或 apply to a company，就把焦點放在收件方，也就是大學、使館或公司。簡單記：for ＋ 你要拿到的東西；to ＋ 你遞交申請的地方。實際用句例：「I’m going to apply for a scholarship next month.」「She decided to apply to three universities abroad.」只要掌握這個方向，就能自然又正確地運用 apply for 與 apply to！

The phrase "go ahead" is a common expression used to give permission, encouragement, or to signal someone to proceed. For example, if someone asks, "Can I ask a question?" you might respond, "Go ahead," meaning "Yes, please do." It can also be used when starting something yourself, like "I’ll go ahead and start without them." The tone is usually friendly or polite, and it helps conversations or actions move forward naturally.

「go ahead」是一個非常常用的口語片語，主要有「開始做吧」、「儘管去做」或「請先說／請先行」的意思，通常帶有給予許可、鼓勵或讓步的語氣。例如在辦公室裡，如果你想印文件但同事正好在使用印表機，你可以禮貌地說："May I use the printer?" 對方若回答："Sure, go ahead."，就表示他同意讓你先用；又或者老師在課堂上說："If you have any questions, go ahead and ask."，就是鼓勵學生有問題就儘管提。平時聊天時，當你想插話或分享看法，也可以先說："Can I go ahead?" 以示禮貌。總之，只要記得「go ahead」蘊含的是「得到允許並立刻開始」的感覺，就能在日常對話中靈活運用。