So before I leave you all to start your tour, I've just got a few tips.

在你们开始游览之前，我还有一些温馨提示。

youdao

This is a no brainer, but it is good to read up on tips on cycling safety (see links below) before heading out into dangerous traffic.

这是一个无需用脑的事，但仍然建议在骑车进入危险交通之前先读一下安全骑车的知识（参见下面的链接）。

youdao

Each time a cell replicates itself (as it does before it dies), the telomeres shorten, like plastic tips fraying on the end of shoelaces.

细胞每复制自己一次(细胞在死亡之前都会如此)，其端粒就会缩短，就像鞋带的塑料头会磨损一样。

youdao

Or another way of looking at this is that once you take out those for whom minimum wage is just a basic, before tips and or commissions, we end up talking about 3% or so of hourly paid workers, or something like 1.5% of the total workforce.

FORBES: Greg Mankiw's Excellent Question: Why a $9 Minimum Wage? Why Not $90? Or 90 cents?

First a bit of personal disclosure before my tips.

FORBES: Online Woes Send Poker Players Back to the Felt

Good tippers include businessmen, pickup truck drivers and anyone who has had to work for tips before.

FORBES: How To Win Friends And Influence People With Tipping