na. 碰到;忽然想到;突袭;要求
[网络] 感动人

came upon的用法和样例:

例句

用作动词(v.)
  1. My parents have never come upon us for anything.我的父母从来没向我们要求过任何东西。
  2. Such a demand borders upon folly.提出这种要求简直是愚蠢。
学英语单词
adultcentrist
Andrézieux-Bouthéon
antorbital process (or preorbital process)
avocationally
bicmos
branchiogenous
carabe
carrier sense multiple access with collision resolution
cathode ray tube spot scanner
catodic attack
cornu (pl. -nua)
coronary thiombosis
crosspointer instrument
Cryptozoic Eon
decontamination system water heater
delinquence
denudation plane
digital storage system
dislocation climb model
dissociation recombination
double-dereference
double-heartedness
entangel
examinational
exponential service
forsook
four sheets to the wind
frohntoclypeus
galatur
germacrene-B
grant-forward
greiter
Hammond organ
heteropleural transplantation
hexad
kolpik
Lepidosaphinae
light-pen control
line flooding
localized negative charge
Lone Star tick
Longformacus
lumbosacral spondylolisthesis
M.Ch., M.Chir.
marble board
mastiche
melted-glass lining
meteorium subpolytrichum horikawa
multi-instrument
name of buyer or payee
navy publications
neillia serratisepala l.
Neolitsea obtusifolia
nerd magnet
neutron-induced fission
newsgroups categories
one's own lookout
open roller chock
optic segment
oxalis tetraphylla cav.
paperhood
parallactical
penalisings
Peqin
phogrin
pit of stomach
posterior dichotomy
privatizations
public hall
Raundal
reacher-in
resource constraints
rubber boot
salt cellar
satellite cloud picture analysis
sealed pore
shell galaxy
shipbuilding hall
show cause
standalone
statement label expression
swiezy
Tacoronte
take on faith
Tan Phu
thermal radiation destruction distance
town refuse
transition diagram
turbine blades
unilaterally tear up an agreement
unit time study
up train
Ustyuzhna
vena tibialiss
venenosalivary
vouches
waste management
water-source survey
wirerope transportation
workins
yanniss