Both _ and _ laughter do harm to your health.
A. burst out crying;burst into
B. to burst out tears;to burst into
C. bursting into tears; bursting into
D. bursting into crying;bursting out
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(答案→)A. burst out crying;burst into
B. to burst out tears;to burst into
C. bursting into tears; bursting into
D. bursting into crying;bursting out
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