1·在节奏训练中，他用每英里10～20秒的速度一次跑4英里，这个速度比10-K的比赛稍慢。
On tempo days, he runs 4 miles at a pace that's 10 to 20 seconds per mile slower than 10-K race pace.
2·孟加拉国：溺水死亡占所有1 - 4岁儿童死亡人数的20%。
Bangladesh: drowning accounts for 20% of all deaths in children aged 1-4 years.
3·对于该试验，我们在一个IBM POWER 7服务器上使用了一个小分区，该服务器具有0.5个处理器、4 GB的内存和20 GB的存储器。
For this experiment, we used a small partition on an IBM POWER7 server with 0.5 processor entitlement, 4 GB of memory and 20 GB of storage.
4·他估计新增的关税使得应纳税之进口下降了17% - 20%，使得总进口下降了4% - 6%。
He estimates that the new tariff reduced dutiable imports by 17-20% and the total by 4-6%.
5·排气量在4.0升以上的车，税率由20%上调至40%；排气量在3.0升以上至4.0升(含4.0升)的车，税率由15%上调至25%。
The tax rate on cars with engines bigger than 4 liters will rise to 40% from 20% while those with engines between 3.0 liters and 4.0 liters will increase to 25% from 15%.
6·太多的人都追求快速减肥——4周减10磅，2个月减20磅，等等。
Too many people focus on trying to lose weight fast - 10 pounds in 4 weeks, 20 pounds in 2 months, etc.
7·每隔4到6个小时，用冰袋或者蔬菜冷冻袋冰敷伤口20分钟。
Ice the trouble spot with an ice pack or a bag of frozen veggies for 20 minutes, every 4 to 6 hours.
8·在观察到的所有意外伤害中，913名儿童(56%)为摔伤；350名儿童(22%)为道路交通伤害；210名儿童(13%)为烫伤；66名儿童(4%)为中毒；20名儿童(1%)为接近溺水或溺水。
Of all the injuries observed, 913 (56%) involved falls; 350 (22%), road traffic injuries; 210 (13%), burns; 66 (4%), poisoning; and 20 (1%), near drowning or drowning.
9·总病死率为4%，但在一些边远地区可高达20%到30%。
The overall case fatality rate is 4% but has reached up to 20-30% in remote areas.
10·220的真约数(1、2、4、5、10、11、20、22、44、55、110)之和是284,284的真约数(1、2、4、71、142)之和是220。
The sum of the proper divisors of 220 (1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110) is 284. The sum of the proper divisors of 284 (1, 2, 4, 71, 142) is 220.