In 2018, they had visited the area and took a small test core.
2018年,他们参观了该地区并取得了一个小型测试冰芯。
单词 | test core |
例句 |
原声例句
VOA Special 2021年9月合集 In 2018, they had visited the area and took a small test core. 2018年,他们参观了该地区并取得了一个小型测试冰芯。 |
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