at 音标拼音: ['æt]
prep .
在…;在…时;在…中;在…方面;针对着;以;从事于;因为,由于
在…;在…时;在…中;在…方面;针对着;以;从事於;因为,由於
at 查表
at 在
At n 1 :
a highly unstable radioactive element (
the heaviest of the halogen series );
a decay product of uranium and thorium [
synonym : {
astatine }, {
At }, {
atomic number 85 }]
2 :
100 at equal 1 kip in Laos At \
At \,
prep . [
AS . [
ae ]
t ;
akin to OHG .
az ,
Goth .,
OS ., &
Icel .
at ,
Sw . [*
a ]
t ,
Dan . &
L .
ad .]
Primarily ,
this word expresses the relations of presence ,
nearness in place or time ,
or direction toward ;
as ,
at the ninth hour ;
at the house ;
to aim at a mark .
It is less definite than in or on ;
at the house may be in or near the house .
From this original import are derived all the various uses of at .
It expresses :
[
1913 Webster ]
1 .
A relation of proximity to ,
or of presence in or on ,
something ;
as ,
at the door ;
at your shop ;
at home ;
at school ;
at hand ;
at sea and on land .
[
1913 Webster ]
2 .
The relation of some state or condition ;
as ,
at war ;
at peace ;
at ease ;
at your service ;
at fault ;
at liberty ;
at risk ;
at disadvantage .
[
1913 Webster ]
3 .
The relation of some employment or action ;
occupied with ;
as ,
at engraving ;
at husbandry ;
at play ;
at work ;
at meat (
eating );
except at puns .
[
1913 Webster ]
4 .
The relation of a point or position in a series ,
or of degree ,
rate ,
or value ;
as ,
with the thermometer at 80 [
deg ];
goods sold at a cheap price ;
a country estimated at 10 ,
000 square miles ;
life is short at the longest .
[
1913 Webster ]
5 .
The relations of time ,
age ,
or order ;
as ,
at ten o '
clock ;
at twenty -
one ;
at once ;
at first .
[
1913 Webster ]
6 .
The relations of source ,
occasion ,
reason ,
consequence ,
or effect ;
as ,
at the sight ;
at this news ;
merry at anything ;
at this declaration ;
at his command ;
to demand ,
require ,
receive ,
deserve ,
endure at your hands .
[
1913 Webster ]
7 .
Relation of direction toward an object or end ;
as ,
look at it ;
to point at one ;
to aim at a mark ;
to throw ,
strike ,
shoot ,
wink ,
mock ,
laugh at any one .
[
1913 Webster ]
{
At all }, {
At home }, {
At large }, {
At last }, {
At length }, {
At once },
etc .
See under {
All }, {
Home }, {
Large }, {
Last } (
phrase and syn .), {
Length }, {
Once },
etc .
{
At it },
busily or actively engaged .
{
At least }.
See {
Least }
and {
However }.
{
At one }.
See {
At one },
in the Vocabulary .
[
1913 Webster ]
Syn : {
In }, {
At }.
Usage :
When reference to the interior of any place is made prominent in is used .
It is used before the names of countries and cities (
esp .
large cities );
as ,
we live in America ,
in New York ,
in the South .
At is commonly employed before names of houses ,
institutions ,
villages ,
and small places ;
as ,
Milton was educated at Christ '
s College ;
money taken in at the Customhouse ;
I saw him at the jeweler '
s ;
we live at Beachville .
At may be used before the name of a city when it is regarded as a mere point of locality . "
An English king was crowned at Paris ." --
Macaulay . "
Jean Jacques Rousseau was born at Geneva ,
June ,
28 ,
1712 ." --
J .
Morley .
In regard to time ,
we say at the hour ,
on the day ,
in the year ;
as ,
at 9 o '
clock ,
on the morning of July 5th ,
in the year 1775 .
[
1913 Webster ]
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