不得不,必须(have to和has to的过去式)

学英语单词
acid accumulator
active-matrix organic light-emitting diode
adultizing
alder fly,alderflies
andkhvoy (andkhui)
backloading
backward-transfer signal
ball coupling
Bentotiamine
blood bin
BlueRay disk
bolis
boule weir
caustic line
chip war
chit malt
chlorobiocine
chloronectrin
clickthrough rate
congratulate oneself that...
corn chamomile
creditableness
Doldersum
downgradeable
Dul-Tone
endcapping
epilithion
equivalent friction
fast dislocation
fly ash emission
fracture closure pressure
genus viminarias
Godmanchester
gomoria
hartebeests
hitch-hike
hubbubbed
I. I. A. C.
iacocca
ignition charge
infra-red lamp
journalier
Kwangdok
likelihood ratio (lr) test
longitudinal electro-motive force
manage with
mass correction
mechanization of cargo handling
Mikhwā
minimum distance decoding
misregulate
Moebius scarf
moqtada
must-wins
ncpap
nematodiasis
neo-trio-zinc-paste
New Iberia
norbert wieners
nuclear endosperm
open-end impedance
pagano
pain au levain
panharmonicons
partheno
pedestal concrete
permeable rock
Permusozero, Ozero
polynucleotidase
pressure reducer
prevary
propeller-hull vortex (phv) cavitation
Protodyakonov coefficient
PTR record
public adjuster
puccinia taihokuensis
pumice aggregate concrete
radicating
regulate expenditure
reserveful
Richards Bay
rske demodulator
run into debt
run of river turbine
Saswana
satellite navigation equipment for user
scheideggs
self-propelled ropeway
setting-out work
Sherman, Roger
simple negligence
special-purpose ladder
Supervisory Computer Control System
tete a tete
top one-wayfired soaking pit
Touraine
tungsten wire furnace
upscalest
user structure
velocity modulated oscillator
voluntary chains