One good turn deserves another ^{礼尚往来(善有善报)}

turn ^{n.情况的变化（good turn 破天慌了、突然变（good、bad、kind...）了、太意外了）}

• One bad turn deserves another ^恶有恶报
• One kind turn deserves another ^{一次善良的举动值得回报（善有善报）}
• One generous turn deserves another. ^{一次慷慨的举动值得回报}
• One helpful turn deserves another.^{一次有帮助的举动值得回报}
• One thoughtful turn deserves another.^{一次体贴的举动值得回报}
• One considerate turn deserves another.^{一次体贴周到的举动值得回报}

I was having dinner at a restaurant when Tony Steele came in.^{（强调从句）}

当一个事情持续进行，另一件事情打断的时态组合 ^{（过去进行时 + 一般过去 = 两件事同时发生）}

• When my husband was going into the dining room this morning, he dropped some coins on the floor.
• While my friend, George, was reading in bed, two thieves climbed into his kitchen.
• When the plane arrived, some of the detectives were waiting inside the main building while others were waiting on the airfield.

when ^{conj.这时...[主句正在进行，从句一般过去时]（镜头切换到从句）}

• I was having dinner when the phone rang. ^{理解为：我们原本正在吃饭来着...这时...电话却响了起来～}
• We were having a class when the door opened. ^{理解为：上课上得好好的，这时门开了...}

Tony worked in a lawyer's office years ago, but he is now working at a bank ^(now).

years ago ^{名词-s,前面省略了 some、many、several}

• The instrument was bought by my grandfather many years ago.
• The airport was built years ago, but for some reason it could not be used then.
• The big clock which used to strike the hours day and night was damaged many years ago and has been silent ever since.
• He met her years ago. ^{他很多年前遇见了她。}

be work at ^从事

• he is working at a bank.^{在银行工作。}
• My brother works at this factory. ^{我哥哥在这家工厂上班。}
• I work for / at / in a small company.

He gets a good salary, but he always borrows money from his friends and never pays it back.

always \ never ^{决定了时态为一般现在(现在、经常性的、习惯性的)}

• The teachers in the New Oriental school can get a good salary. ^{获得不错的薪水}
• He earns / gets a handsome salary / a lot of money… but he always owes money to his friends.

never ^(从不) = not ^{never前面不需要加助动词}

• I never get up early on Sundays. ^{我从不在星期天早起。}
• I don't get up early on Sundays. ^{我在星期天不早起。}
• I get up late on Sunday. ^{我在星期天起来得晚。}

pay back ^{“偿还（债务等）”，、“付，支付（价款、账单）等”，报复}

• How much did you pay^(vi.) for that dress.
• I paid^(vt.) the bill.
• Have you paid (me) back the money you owe me yet? 
• I'll pay you back next week
• I'll pay him back for making me look like a fool in front of everyone. ^报复

Tony saw me and came and sat at the same table.^{(and 连接三个并列的动词)}

Would you like to join us?^{邀请别人加入}

He has never borrowed money from me. ^{过去完成时([到目前为止]他从未向我借过钱。)}

borrow ^借；借入

• He never borrowed money from me. ^{一般过去时（他[过去]从未向我借过钱。）}
• Can I borrow your pen for a moment? ^{我能借一下你的笔吗？}
• I've arranged that we can borrow their car. ^{我已经说好了，我们可以借用他们的车。}
• It's all right to borrow money occasionally, but don't let it become a habit. ^{偶尔借点钱倒没关系，但不要养成习惯。}

'I have never borrowed any money from you,' Tony said, 'so now you can pay for my dinner!'

pay for ^{为…而付钱}

• I have paid for you a dinner.
• I have paid 20 dollars for the book.
• Must I pay for my cancel? ^{我需要为我的取消付款吗？}

ask (sb.) for sth. ^问…要…

• It's my treat. ^我请客
• This time is your treat^{(treat or trick)}. Next time is my turn.
• That's okay, you guys have ordered so many that this one is on me! ^算我的
• Let's go dutch. ^{AA 制(让我们做荷兰人，但不常用)}
• Oh that’s on the house, courtesy of Joey Tribbiani
• No charge for the cleanup. It's on the house. ^{店主请客(免费)}