这些虫子太小了,你用肉眼看不到它们。
These bugs are so tiny you cannot see them with ___the ___naked ___eye.
在晴朗的夜晚,星星可以用肉眼看到。
Stars are visible to ___the ___naked ___eye on a clear night.
细菌通常太小,无法用肉眼观察。
Bacteria are usually too small to be observed with ___the ___naked ___eye.