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
Acampe
added displacement
agentless backup
Alzheimer disease
aminate mixed bed
Appian Way
as cold as a frog
Aspergillus bouffardi
B. S.
back value
balloon stability
baser
be on the rates
beframe
cabin instrument system
car-hailing
chanchoes
classification of occupations
clean reactor
cliff spring
company employee
convex solid cutter
decision symbol
decode statement
desmodium purpureums
desugared egg
discrete system simulation language
dry topped
ego-defense
electronic book exchange
enterovirus enterovirus encephalomyelitis
envenomations
Eriocaulon robustius
estimated time of passing
exercise the proper surveillance
express train or bus
fair lead
first moments
flat plate floor
four-stage mass spectrometer
Gallianos
get someone on a string
glomerular nephritis
glycopeptides
go for nothing
grandmother clock
hexadecahedroid
hitch
Hovius' membrane
hypothecating
instrumentalizers
interested party
jeopard
JMCIS
lee-way
Leksvik
limiting horizontal resolution
lobetta
loose-side
Lophanthus schrenkii
mereotopologies
mist lubrication
Monsummano Terme
mopen
moralizingly
mozzarellas
multiple effect
Mustache Petes
nanowaveguides
organic accelerator
pearl diabase
penitant
pentateuches
piston ring groove cleaner
plaur
Populus duclouxiana
prankishness
quadrant cutter
Radix Inulae Racemosae
red lizardfish
rossport
rubificate
ruckman
sequential data storage
shear head
sicatives
slow-neutron chain reaction
solid logic technology
sperm center
starter of fertilizer in seedbed
subschema translation
Tapaua
thermal burn of larynx
threw your hat into the ring
to keep it real
total-head orifice
true seal
tunnel surrounding mass deflection
visual performance
wilayat
winter zone
Xylase