詞匯講解：


1.mock模仿

如：
She opened her eyes wide in mock disbelief.
她睜大眼睛假裝不相信。

The army training exercises ended with a mock battle.
軍事訓練演習以一場模擬戰結束。

2. engage in從事，參加

如：I have no time to engage in gossip.
我無暇閑聊.

Is it wise to engage in active sports at your age?
我這樣的年紀積極參加體育活動是否明智？

3. sober清醒的,沉著冷靜的,穩重的,顏色暗淡的

如：He is perfectly sober.
他根本沒喝醉。

They had to give a sober assessment of the situation.
他們必須對情況做個實事求是的估量。

4.grave嚴肅的,嚴重的,低沉的

如：
His face was grave when I told him my decision.
當我告訴他我的決定時, 他的臉色很嚴肅。

The situation poses a grave threat to world peace.
這局勢對世界和平構成了嚴重的威脅。

5.let out放出，泄露

如：
The prisoners were let out to work in the garden.
囚犯們被放出到花園里去勞動。

When the land was seen, the sailor let out a whoop of joy.
當看見陸地時, 那水手發出一聲歡呼。

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