英语翻译The Shenzhou-7 space module,carrying three taikonauts,la

英语翻译
The Shenzhou-7 space module,carrying three taikonauts,landed safely by parachute on Sept.28 in China's northern grasslands after a 68-hour flight.The ___21___included the first ever spacewalk by a Chinese astronaut.
Chinese scientists on Monday___22___ a box of solid lubricant (润滑剂) samples that were ___23___the Shenzhou-7 spacecraft.The solid lubricant samples,___24___outside the Shenzhou-7 capsule in the ___25___space for long hours and retrieved (重新找回) by astronaut Zhai Zhigang during his spacewalk,weighed about 2.2 kg.They will study the material for the next six months.
Two types of solid lubricant samples,after being ___26___ to outer space for 44 hours during the Shenzhou-7 space journey,had shown ___27___changes.The appearance of the two types of samples has either turned dark or become rougher.
Solid lubricants are widely used in spacecraft to___28___ friction because they withstand high temperatures.Scientists hoped to improve the stability and lifetime of the materials by studying the test samples taken to outer space.Scientists would ___29___the samples with those exposed to a simulated space environment in the laboratory.
If scientists discover the difference between the two exposed lubricants,they might be able to ___30___ how other materials change in outer space.
21.A.job                     B.mission             C.responsibility     D.task
22.A.break              B.damage             C.remove             D.unsealed
23.A.aboard             B.abroad                     C.along                D.under
24.A.gathered          B.landed               C.loaded            D.used
25.A.out                     B.outer                 C.outside              D.inner
26.A.taken               B.uncovered         C.stuck                 D.exposed
27.A.different          B.special                     C.obvious             D.rough
28.A.reduce             B.increase             C.remove             D.forbid
29.A.experiment      B.compare            C.test                   D.mix
30.A.compare          B.advise               C.tell                   D.test

21 mission
22 unsealed
23 aboard
24 used
25 outer
26 exposed
27 obvious
28 reduce
29 test
30 tell
倾心回答,
再问： 我要答案.我想知道怎么翻译 帮忙翻译下The Shenzhou-7 space module, carrying three taikonauts, landed safely by parachute on Sept. 28 in China's northern grasslands after a 68-hour flight.这句就行