His eldest child is still in the sixth form.
他年龄最大的孩

六年级。
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全真试题14
| 双语精读 The Standard Model consists of six quarks, six leptons, five known bosons and a postulated sixth, the Higgs boson (named for a Scottish scientist, Peter Higgs), plus three of the four physical forces: the strong and weak nuclear forces and electromagnetism.
6种夸克、6种轻子、5种已知的玻色子和1种假设的玻色子,(即希格斯玻色子,以苏格兰科学家彼得·希格斯的名字命名),加上4种物理
中的3种:强核
、弱核
和电
。
师教你巧练瑜伽 Pollution, climate change and the exploitation of habitats and loss of biodiversity are playing havoc with ecosystems. Ecologists have been warning of a sixth mass extinction and there's academic debate over whether that's already happening.
污染、气候变化、栖息地的
肆开发和生物多样性的丧失正在对生态系统造成严重的破坏。生态学家一直在警告第六次物种
灭绝的到来,但学术界对这一观点仍存有争论。