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times 7, plus we have 6 in the sulfur, and oxygen is right above sulfur, so that also has 6.
二乘上七，加上硫的六个，而氧在硫的正上方，因此也有六个。
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$firstVoiceSent
- 来自原声例句
times 7, plus we have 6 in the sulfur, and oxygen is right above sulfur, so that also has 6.
二乘上七，加上硫的六个，而氧在硫的正上方，因此也有六个。
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