i f only if和有什麼不一樣?

母語人士的回答
Rebecca
Only if用於談論某事發生所必需的條件。它的意思是not unless 。例如,“ Only if I pass this exam, can I get accepted into law school ”這句話意味著你必須通過這個考試才能進入法學院。請記住,當您使用Only if時,以下句子是倒置短語,因此動詞在前!例: Only if the other party agrees can we sign the contract. (只有在對方同意的情況下才可以簽這個合同。) 例子: Only if you wash the rice first can you reduce the starch amount. (你可以先洗米來減少澱粉的量。) I f也是有條件的,但建議一般可能性!例子: If I were a dog in my next life, I wouldn't have to work. (如果你下輩子是條狗,你就不用工作了。) 例子: If it rains tomorrow, I'm taking a taxi instead of walking. (如果明天下雨,我會乘出租車而不是步行。) if, and only if這個表達可能強調以下子句是一個家庭的故事。 Ex: If, and only if, she agrees, can we seal the deal. (只要她同意,我們就可以完成交易。) Ex: If, and only if, the groundhog sees its shadow, can we enjoy an early spring. (當土撥鼠看到他的影子時,我們可以享受早春。)