时间:2019-02-15 作者:英语课 分类:英语时差8,16


英语课

Ear rocks, also known as “otoliths,” are tiny pebbles 1 of calcium 2 carbonate in our inner ear that help keep us balanced. They’re located deep inside the inner ear in a small pouch 3 called a utricle. When we move our heads, the tiny rocks move around and bump into nerve cells. These nerve cells send signals to our brain that tell it which way the head is oriented. It’s one way we know up from down. But problems with ear rocks can be a cause of chronic 4 dizziness or vertigo 5. Occasionally the little pebbles fall out of the utricle and can get into another part of the inner ear canals. When this happens, the brain senses that we’re moving much more than we really are, resulting in sensations of unsteadiness or dizziness.



[复数]鹅卵石; 沙砾; 卵石,小圆石( pebble的名词复数 )
  • The pebbles of the drive crunched under his feet. 汽车道上的小石子在他脚底下喀嚓作响。
  • Line the pots with pebbles to ensure good drainage. 在罐子里铺一层鹅卵石,以确保排水良好。
n.钙(化学符号Ca)
  • We need calcium to make bones.我们需要钙来壮骨。
  • Calcium is found most abundantly in milk.奶含钙最丰富。
n.小袋,小包,囊状袋;vt.装...入袋中,用袋运输;vi.用袋送信件
  • He was going to make a tobacco pouch out of them. 他要用它们缝制一个烟草袋。
  • The old man is always carrying a tobacco pouch with him.这老汉总是随身带着烟袋。
adj.(疾病)长期未愈的,慢性的;极坏的
  • Famine differs from chronic malnutrition.饥荒不同于慢性营养不良。
  • Chronic poisoning may lead to death from inanition.慢性中毒也可能由虚弱导致死亡。
n.眩晕
  • He had a dreadful attack of vertigo.他忽然头晕得厉害。
  • If you have vertigo it seems as if the whole room is spinning round you.如果你头晕,就会觉得整个房间都旋转起来
学英语单词
acetylcholinesterases
acoustic strain ga(u)ge
adventitial dermis
alquist
ammunition lot
annus et dies
bacillus lethalis
Baric.
basic cerise
borroweth
Brazilian tinamou
burden analysis
carburatter
carryover
Centaurea scabiosa
change interval
change of climate
chronic lymphocytic leukemia
cloor
colombellinids
counterresistance
craftworker
dehorner
diminutivise
ecomigrations
Edronax
error control equipment
evangelicality
evolutionary step
exclusive territories
execution abort
eye tracking unit
family armadillidiidaes
fomorians
Fort Yukon Indian Reservation
gas condenser
Gourcy
grannexe
guidance terminal forecast (gtf)
habia
heteromorphic bivalent
HPPIsopurind
ichthyoacanthotoxins
indoor ventilation system
inspection and repairs
instantaneous force
judicial organ
kaiser wilhelms
kpl
linaridial
longitudinal gradient
lyricization
marker beacon indicator
maximum obstacle-crossing height of one front wheel
melt ... down
multiplex control
oenin
open-cycle reaction system
oral florid papillomatosis
orographic(al) tinting
Paje
paralichthyss
partial autocorrelation
pea-brained
pelotage wool
pheremone
photovision
postgraft
practical surveying
pressure block
queen scallop
railway hospital
Regio occipitalis
rigid polyvinyl chloride
rivet welding
rogue host
rosewell
Rossetti
secondary phosphine
sherardises
soledad pines
sports advertisement
strawberry bushes
suspensiometer
swing indicator
synchronized lifting equipment
thermomoulds
thoff
UCB-1402
ultramilitant
uncollected premium
vasicentric tracheid
vermion
virgil
warble tone generator
wavebeam guide
weak principle of fading memory
Yablonevyy
z-factor
zero-valence
zoosporangial