to check
[动词]
检查
Ex:
Let
me
check
my
calendar
to
see
if
I
'm
available
that
day
.
让我查看我的日历，看看我那天是否有空。
to keep
[动词]
保留
Ex:
He
found
a
lost
wallet
on the street
and
decided
to
keep
it
until
he
could
find
the
owner
.
他在街上发现了一个丢失的钱包，并决定保留它，直到他能找到失主。
to enter
[动词]
进入
Ex:
The
students
regularly
enter
the
classroom
before
the
bell
rings
.
学生们经常在铃响之前进入教室。
to return
[动词]
返回
Ex:
The
migratory
birds
return
to
their
nesting
grounds
every
spring
.
候鸟每年春天都会返回它们的筑巢地。
have to
[动词]
必须
Ex:
We
have to
pay
our
bills
before
the
due date
to
avoid
late
fees
.
我们必须在到期日之前支付账单以避免滞纳金。
