hollow out的音標是[hollow out]，基本翻譯是“挖空，挖成空洞”。速記技巧是：hollow是“空洞的”意思，out是“出去”的意思，連在一起就是“挖空”。

hollow out的英文詞源為：

hollow：空洞的，空心的

out：表示“向外，在外面”

hollow out的字面意思就是“向內挖空，挖成空洞的”。

相關單詞：

1. hollow-sounding（空洞的）：其詞源與hollow out相同，都表示空心的。

2. hollow-faced（面無血色的）：這個單詞用來形容人因為極度悲傷或沮喪而顯得面無血色。

3. hollow-through（貫穿）：表示從內部貫穿，與hollow out的意思相近。

4. hollow-out（挖空）：這個單詞用來形容向內部挖空的動作。

5. hollow-out war（挖空戰爭）：這個詞組用來形容為了爭奪資源而進行的戰爭，導致某地被挖空。

6. hollow-out syndrome（挖空綜合癥）：這個詞用來形容過度挖掘資源導致身體機能下降的現象。

7. hollow-out campaign（挖空行動）：這個詞組用來形容一種政策或戰略，旨在通過削減資源來削弱對手。

8. hollow-out process（挖空過程）：這個詞用來形容資源逐漸減少的過程。

9. hollow-out strategy（挖空策略）：這個詞組用來形容一種策略或戰術，旨在通過削減資源來削弱對手或敵人。

10. hollow-out effect（挖空效應）：這個詞用來形容由于資源減少或削減導致的負面影響。

以上這些單詞都與hollow out的意思相近，都表示向內部挖空或削減資源的意思。

hollow out短語：

1. hollow out a tooth

2. hollow out a weapon

3. hollow out a bone

4. hollow out a shell

5. hollow out a tree trunk

6. hollow out a pumpkin

7. hollow out a pumpkin shell

例句：

1. The dentist hollowed out the tooth with a drill.

2. He hollowed out a weapon from a piece of wood.

3. The bone was hollowed out to make a container for storing food.

4. The shell was hollowed out to make a whistle.

5. The tree trunk was hollowed out to make a boat.

6. We carved a pumpkin for Halloween and hollowed it out to make a lantern.

7. The pumpkin shell was hollowed out and filled with seeds and leaves to make a bird"s nest.

英文小作文：

Hollow Out Pumpkins for Halloween

Halloween is a fun holiday where we can dress up in costumes and enjoy the scare. One of the most popular activities is carving pumpkins into jack-o"-lanterns. To make them look more interesting, we often hollow out the pumpkins to create unique shapes and patterns. This process can be fun and challenging at the same time. It requires patience and creativity, but the end result is always worth it. When we light up the jack-o"-lanterns, they become bright and colorful, giving us a spooky yet happy atmosphere. So, if you"re planning to carve pumpkins this Halloween, don"t forget to hollow them out first!