一、only if 1.在only if 这个短语中,副词only是中心词,而从属连接词if则只是用来连接从句的,因此,它表示“只有……(才);只有在……的时候,唯一的条件是……”的意思.例如:I told him he would succeed only if he tried hard.我告诉他,只有努力才能成功.2.only if 有时也写成only...if,表示唯一的...
Examples:1. The company will succeed only if it have sufficient backing. 只有当该公司获得足够的资助,它才会成功。2. A compound proposition that has components joined by the word and or its symbol and is true only if both or all the components are true. 综合命题由和或其符号所连接的子句组成...
Examples: 1.I told him he would succeed only if he tried hard.我告诉他,只有努力才能成功。 2.Only if the case is urgent should you call out the doctor in the middle of the night.只有患者情况紧急时,你才可以在半夜叫医生看病。 3. Only if I get a job will I have enough money to go...
Examples:1. The company will succeed only if it have sufficient backing. 只有当该公司获得足够的资助,它才会成功。2. A compound proposition that has components joined by the word and or its symbol and is true only if both or all the components are true. 综合命题由和或其符号所连接的子句组成...
if only＋从句主语＋would/could have/had＋过去分词 eg：If only you had come to my birthday party. 你要是来了我的生日晚会就好了。If only: 常常用来表示强烈的愿望，因为用于虚拟语句时和wish类似，表达强烈的遗憾或与真实条件不符的愿望。因而使用起来的形式与wish相同。
if2noun[countable]informal1→ifs and buts2→and it’s a big if3something that may or may not happenThere are too many ifs in this plan of yours.Examples from the Corpusif•There are still too many ifs to knowifourproductwill besuccessful. ...
答案]A[译文]瞧,我的处境多糟糕,要是听了你的主意该多好啊![考点]虚拟语气[解析]if only引导的句子,表示说话人的一种愿望,希望过去发生的事能与事实相反。 由此
Then A×B = C×D if and only if A=C and B=D.(a) Prove this statement.(b) One of the two implications does not require the sets to be nonempty. Which one?(c) If we do not require the sets to bo nonempty, then the statement is false. Give examples of sets A,B,C and D ...
Examples: I wish itwould snow. I wish itwould stopraining. Given thatwish … would(n’t)talks about behaviour and actions that are beyond the speaker’s control, we do not use this structure in the first person. Example: I wish I would do more sport. ...
In computer programming, we use the if statement to run a block of code only when a specific condition is met. In this tutorial, we will learn about Python if...else statements with the help of examples.