了解

keep track of的用法和样例:

例句

  1. Please ask if you cannot keep track of what I'm telling you.如果你们听不懂我所讲的话,请提问。
  2. As a doctor James has to keep track of the latest developments in medicine.作为一名医生,詹姆斯必须了解医学的最新发展动态。
  3. Keep track of the time you actually travel.把你旅行的实际时间记录下来。

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Exercise 1-31: Contrasting Descriptive and Set Phrases CD 1 Track44 图片1

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Exercise 3-1 : Word-by-Word and in a Sentence CD 3 Track6 图片1

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Exercise 1-25: Sentence Stress with Descriptive Phrases CD 1Track 37 图片1 图片2

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Exercise 1-24: Single-Word Phrases CD 1 Track 35 图片1

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CD 2 Track 23 图片1

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Exercise 5-10: Dull versus ~dle CD 3Track 35 Repeat after me 图片1

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The track meet will be postponed until tomorrow, said a recorded message on the phone, for the second time. The end of the school year is the time for track and field events for all elementary schools. Recently, however, the weather has not been coop

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学英语单词
absolute nullity
accommodating accounts
acquired dementia
antonellas
arm hole
Askham
augmented unisons
available
calibration check
Calmax
Cardimon
center-of-mass energy
cipher telegram
common flat peas
consumption capacity
crab winch
dembies
derivative work rights
dolichocephal
double straddle
elliptic amputation
endogenous mental retardation
endurance-limit
eptatretus chinensis
exploration and production
feed rock shaft bushing
fibroepithelial
fictitious force
filoma
fire-lizard
form a picture
frannies
Fuller faucet
gasoline officer
Genevize
golden hamster
graphophone
grooper
hanging bolt
hardware return-address storage
helina nervosa
hemorrhagic measle
hydrographic
ibn al-haythams
in no circumstances
indiscrete value
injection efficeincy
jakeloo
jucunda
labilise
laboulbenia torta
local channel
Mount Hubbard
network nitride
no longer ago than
oogametes
page interleave
parking discs
Pharmagenesis
plocoid
pro-india
purple willow
quench blanking
real voltage souroe
red-ochres
right-handed polarized wave
rope trolley
seat pack parachute
self-emancipations
senile paralysis agitans
septum (pl. septa)
set up unit
siphon injection
spot glare
Srong-brtsan-sgam-po
subsidiary signal
succeded
sulphuryls
sunburst area
swell-neck pan head rivet
take to town
tap issue of treasury bill
the buck stops here
theopneusted
three-day sickness
thrown clear
thymus dependent lymphocytes
tisane
transvrse vein of face
treaty business
us regal
venerations
videograph tube
Volborg
Von Hippel-Lindau disease
warraguls
wire-electrode copying cutting
wisenberg
workmistress
write/read head
ysprong
Zapotinin