`-` Stress on the 1st syllable(nhấn âm 1): habitat, maintenance, summary, marvelous, penalty, different, sociable, following, generate, conical, sacrifice, argument, counterpart, physical, ceremony, permanent, recognize, industry, reference, cultural

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`-` Stress on the 2nd syllable(nhấn âm 2): contractual, attractive, develop, significant, romantic, appearance, departure, expression, important, traditional, refusal, demanding, conservative, dependent, cooperate, decisive, dynamic, enjoyable

`@` Âm `1`: habitat, argument, maintenance, summary, permanent, marvelous, penalty, generate, different, sociable, physical, following, sacrifice, counterpart, ceremony, conical, reference, recognize, industry, cultural.

`@` Âm `2`: develop, attractive, contractual, traditional, romantic, appearance, departure, dependent, dynamic, important, refusal, demanding, significant, conservative, expression, cooperate, decisive, enjoyable.