Do you know how deep my roots are buried, how thick and strong my trunk is?
你知道我的根扎得有多深,我的树干有多么粗壮吗?
Its wings have become very heavy because of its feathers and grow thick and strong.
它的翅膀变得十分沉重,因为它的羽毛长得又浓又厚。
Since the threads are so thick and strong, the process can be repeated at least ten times.
由于线程如此粗壮,这个过程可以反复至少十次。
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