他正在写作业。He
is
doing
his
homework.
妈妈在清洁地板。Mother
is
cleaning
the
floor.
我弟弟正在跑步。My
younger
brother
is
running.
你妹妹正坐在树下。
Your
younger
sister
is
sitting
under
the
tree.
他正在写作业。HE
IS
DOING
HIS
HOMEWORK
妈妈在清洁地板。MOTHER
IS
CLEANING
THE
FLOOR
我弟弟正在跑步。MY
BROTHER
IS
RUNNING
你妹妹正坐在树下。MY
SISTER
IS
SETTING
UNDER
THE
TREE
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