时间:2019-02-23 作者:英语课 分类:英语时差8,16


英语课

But that’s what comes out after we eat asparagus, which is not necessarily the same was what went in. Our digestive systems do some pretty complex chemistry, you know. Plus, the act of cooking the asparagus probably changes the chemistry around a bit, too. That's very true. So the next step was for scientists to find out what the chemical predecessor 1 for this pernicious aroma 2 is. A number of different compounds have been tried, but the best results came from a molecule 3 called asparagusic acid, which is thought to help the asparagus plant ward 4 off predatory insects. Known excretors took this in pill form, and indeed the repugnant sulfur 5 mixture came out the other end.



n.前辈,前任
  • It will share the fate of its predecessor.它将遭受与前者同样的命运。
  • The new ambassador is more mature than his predecessor.新大使比他的前任更成熟一些。
n.香气,芬芳,芳香
  • The whole house was filled with the aroma of coffee.满屋子都是咖啡的香味。
  • The air was heavy with the aroma of the paddy fields.稻花飘香。
n.分子,克分子
  • A molecule of water is made up of two atoms of hygrogen and one atom of oxygen.一个水分子是由P妈̬f婘̬ 妈̬成的。
  • This gives us the structural formula of the molecule.这种方式给出了分子的结构式。
n.守卫,监护,病房,行政区,由监护人或法院保护的人(尤指儿童);vt.守护,躲开
  • The hospital has a medical ward and a surgical ward.这家医院有内科病房和外科病房。
  • During the evening picnic,I'll carry a torch to ward off the bugs.傍晚野餐时,我要点根火把,抵挡蚊虫。
n.硫,硫磺(=sulphur)
  • Sulfur emissions from steel mills become acid rain.炼钢厂排放出的硫形成了酸雨。
  • Burning may produce sulfur oxides.燃烧可能会产生硫氧化物。
学英语单词
abortive zone
absolute dosimetry
Alficetyn
alloy diffused transistor
alloy-junction photocell
an underworld gang
arithmetical average head
at their fingertips
bare hand working
Bassila
be straitened for
beater head
beershops
bogo-sort
bomerang
cable tension
call names
cascaded drain
centralgol
circumflects
colopodacus parallelus
cover of a set
dielectric dry test
disablist, disableist, disable-ist
disfigurative
electroerosion machining
enjoy rights
exeception list
farm trust account
favourablest
fax-emails
final evaporator
finitary
fireless cooker
forced-steering radial truck
foxbrush
granulosity
grilling
ileus verminosus
intermittent failure
international trade and commerce
international war crimes tribunal
kaiseki
Kallavesi
keyboard clear push switch
kiloradian
kimball
kirgizias
laboratory effects
lead(ii) acetate
listen-before-talk
mandelbrots
mandibular bones
mean flow time
mechain
mechanics of vibration
mercury vapour
museum of anthropology
mutually disjoint family
non-coherent scattering
over-irrigation
overlock
oxidation bleaching
packing die
peroxids
piccolo
pitfighters
productive force economics
pseudokettle
re-engineering/restructuring
renal retinopathy
repairable data base
resistanc wire
revet
revolvements
Rhododendron pachysanthum
ring statistics
rubber bearings
rvflectionpolariscope
sandwich molding
Save As
sedentary
silver mirror
slipperworts
slipping up
sodium tetraarsenite
sophisticated electronics
stanols
stereoscopic viewing instrument
Stradella
submania
surmark
Talzaza
thermal reforming
tip table
total coefficient of correlation
trace metal(s)
transporter bridges
trentonian series
vision quests
w.a
welner