21世纪的出生率可能比20世纪低得多。
The birth rate in the 21st century may be much lower than it was in the 20th.
但它离太阳的距离比地球远,所以火星上的温度要低得多。
It is further from the Sun than the Earth, so temperatures on Mars are much lower.
新加坡两居室公寓的平均月租比上述三个日本城市要低得多。
Singapore's average monthly rent for a 2-bedroom apartment is much lower than that in the above three Japanese cities.
They were off by quite a lot.
这些食物实际卡路里要低得多
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