Surprisingly, in areas where tidal currents are very weak, juvenile horseshoe crabs are found not to have significant barnacle populations, even though they seldom burrow.
令人惊讶的是,在潮汐流很弱的地方,幼年马蹄蟹的藤壶数量并不多,尽管它们很少在洞里活动。
China's international science influence is still weak, even though its investment in science has rapidly increased in recent years, a report has found.
一份新近发布的报告声称,尽管近些年来在科学上的投入不断增加,但中国在国际科学界的影响力依然有限。
He realized that-even though it was painful-using his weak arm for hard work was the only way to make it strong again.
他知道虽然会痛,但是以他微弱无力的手努力工作是唯一能让它再次强壮有力的办法。
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