如果考虑到达时的婴儿波峰，从而调整她们的终身出生率的话，会发现移民的人口出生率大约2.2，并不比平均水平高出多少。
If you adjust their lifetime fertility rate to take account of this bulge of babies on arrival, you find immigrant fertility is about 2.2, not much above average.
如果考虑到达时的婴儿波峰，从而调整她们的终身出生率的话，会发现移民的人口出生率大约2.2，并不比平均水平高出多少。
If you adjust their lifetime fertility rate to take account of this bulge of babies on arrival, you find immigrant fertility is about 2.2, not much above average.
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